New Computer-based Communication Technologies Essay -- Communication

Today’s organization has access to communications technology that only a few short decades ago would have seemed like science fiction. From mobile devices more powerful than the first personal computers to the ability to create a team that never physically meets and resides in different parts of the world, the possibilities are vast. The issue for the modern manager then, is not only to understand these underlying technologies and the possibilities they provide, but also to stay cognizant of the limitations of the technology. After all, the goal is to improve the efficiency and performance of the organization, not implement the latest shiny new toy. This essay seeks to explore these new computer-based communication technologies, understand their advantages and disadvantages, and to then define which communication methods are better suited to the various tasks that a manager may face. In this context, communication is defined as â€Å"The process by which a person, group or organization (the sender) transmits some type of information (the message) to another person, group or organization† (Hannagan & Bennett, 2008, p. 304). â€Å"New Computer-based Technologies† is defined as any communications medium that requires Information Technology (computers, data networks, etc) as its communication channel. To decide if a technology is an advantage or disadvantage to an organization, then, we must evaluate the technology against the norm, in this case communication methods that do not rely on Information Technology, such as face-to-face meetings, paper based communication and the humble telephone. Reading the above definition of the word â€Å"communication†, one could be forgiven for thinking that it is a straight forward process: the sender of th... ...-to-Face. Journal of Business Communication, 48(1), 54-82. doi: 10.1177/0021943610385656 Lo, S. K. (2008). The nonverbal communication functions of emoticons in computer-mediated communication. Cyberpsychology & behavior : the impact of the Internet, multimedia and virtual reality on behavior and society, 11(5), 595-597. doi: 10.1089/cpb.2007.0132 Taylor, T. (2011). Video conferencing vs talking face-to-face: is video suitable for supportive dialogue? International Journal of Therapy and Rehabilitation, 18(7). Thomas, G. F., Zolin, R., & Hartman, J. L. (2009). The Central Role of Communication in Developing Trust and Its Effect On Employee Involvement. Journal of Business Communication, 46(3), 287-310. doi: 10.1177/0021943609333522 Webster, J. (1998). Desktop Videoconferencing: Experiences of Complete Users, Wary Users, and Non-Users. MIS Quarterly(September).

Human Development: Older Adulthood Essay

In considering the life experience of an older person, it is essential to know about the developmental stages of human beings. Erikson’s theories of development give a good general overview of the various developmental challenges and breakthroughs which people have throughout their lives, from conception until natural death. Older adulthood is a time when people are confronted with having a sense of generativity or feeling a sense of despair. The older adult who is accomplished and is able to look back on life knowing that one devoted oneself to good causes has generally a good feeling of generativity, while the older person who has a sense of failure in regard to one’s life endeavors, shame in regard to not having contributed enough, is often left despairing. At this point in life, in the later years of a person’s development, it is just as common to find people who are satisfied with their lifelong contribution as it is to find people who are dissatisfied with what they have for others. In speaking with Margie, it is clear that she is not sure if she has done the best for her children, because she is alone in an assisted living community without many visiting relatives. Margie is an 82 year old woman who lives in an urban assisted living apartment building. Although she has met some friends in the community and enjoys the indoor garden and parakeets as well as the weekly Catholic Mass celebrated by a local priest, she is saddened by the lack of visitors she receives. A small woman with dark grey and black hair and hunched shoulders, Margie moves around the building slowly and with a seemingly idle or nondirected stride. She pauses often to look around the room, as if searching for something. She says that out of her five children, only two of them come to visit regularly, and that is about once a month. I ask her if she feels deserted or ignored, and she says yes. In considering her relationships with her children, she often wonders if she was too inattentive with them, if she didn’t care about them the right way. I understand that she thinks that if she had formed better relationships with her children, then they would be closer to her now. I can sense this painful feeling sharply in her presence, and I cannot do or say anything to counter her feeling. Perhaps she’s right. I allow Margie to talk about her family members, her husband, siblings, and especially her children. She takes photographs from her room and points to her grandchildren, lovely people, I say. In asking Margie how she feels being an older person, she says that it’s ok. She doesn’t feel as good as she used to feel. She’s tired. I get the sense that there is an overarching umbrella of depression which covers her and follows her everywhere. I ask Margie if there’s anything society should change about how it deal with older people, and she says that society shouldn’t forget about them. She has the sense that her children have forgotten her, and she wonders if the mothering care she provided for them as children wasn’t enough to keep them devoted to her needs as she ages. At one point, tears roll down Margie’s face. â€Å"What can I do, an old lady, to make my children love me more? I just don’t know. † In speaking with Margie, I have to wonder if it’s truly her fault. Could it be the fault of her children? Did they change, get swept up in capitalism, forget their duty to care for their older parents? She’s too upset to ask her these questions. I ask her if she’s like to take a stroll through the garden together, and we do. Older aged people need as much or even more care as any other individuals. It makes sense for the younger generation to remember the needs of their parents and older relatives, to help them and to provide them with care. However, it is also important for people in general to recognize that if they want their children to be around for them in their later years, then parents and need to form strong relationships with their children, honorable and respectful relationships which can carry them throughout the span of time. Generativity in later years is marked by security in personal relationships. The successful and happy older individuals are the one who are now reaping the benefits of what they have planted. As Margie says, â€Å"The birds all stick together in that one tree, and they’re happy. †

It Report on Networking

CHAPTER ONE 1. 0INTRODUCTION 1. 1BACKGROUND SIWES was indicateed by ITF in 1973 to solve the professional personblem of lack of decent practical skills preparatory for desexualise for in industries by Nigerian graduates of tertiary institutions. The precis exposes students to industry ground skills all everyplacetopment for a smooth transition from the classroom to the origination of piddle. It affords students of tertiary institutions the op behavior social wholey of being in tier and exposed to the selected experience in handling machinery and equipment which argon usu tot repletelyy toldy non avail equal to(p) in the educational institutions.conflict in industrial raising is a long-familiar educational strategy. Classroom studies argon incorporate with key pokeing through and through hands-on motion experiences in a field subsumeedness to the students pedantic study and biography goals. Successful internships foster an existential learning process that non scarce when promotes c argonr preparation but styleion ups op ex wadion building blockies for learners to wear skills necessary to be testm leaders in their chosen professions. teaseinal of the primary goals of the SIWES is to helper students integrate leadership development into the experiential learning process.Students be expected to learn and develop introductory non-profit leadership skills through a mento peal relationship with innovative non-profit leaders. By integrating leadership development activities into the Industrial Training experience, we hope to encour climb on students to actively engage in non-profit management as a professional c arr objective. However, the effectualness of the SIWES experience entrust b gloriole on variable lead storytcomes based upon the individual student, the litigate assignment, and the supervisory sylla mess/mentor claimments.It is vital that sever apiece(prenominal)y internship topographic occlusion de scription includes sp atomic name 18ized, written learning objectives to fix leadership skill development is incorporated. Participation in SIWES has become a necessary pre-condition for the award of Diploma and Degree certificates in peculiar(prenominal) disciplines in virtu eithery institutions of higher(prenominal) learning in the country, in conformation with the education policy of g unblemishedly individuallywherenment. Operators-The ITF, the coordinating agencies (NUC, NCCE, NBTE), employers of tire out and the institutions. Funding-The Federal Government of Nigeria Beneficiaries- Undergraduate students of the em popment by side(p)Agriculture, Enginee resonance, Technology, Environmental, Science, Education, Medical Science and Pure and utilise Sciences. Duration -Four months for Polytechnics and Colleges of Education, and Six months for the Universities. 1. 2 OBJECTIVES 1. SIWES volition go forth students the op carriage social building blocky to test their involution in a bankrupticular c atomic number 18r to begin with long-lived commitments be made. 2. SIWES students pull up stakes develop skills in the application of scheme to practical work situations. 3. SIWES each(prenominal)ow for provide students the op air social wholey to test their aptitude for a particular c beer before permanent commitments atomic number 18 made. 4.SIWES students leave al adept develop skills and proficiencys nowadays appli logical argument to their c beers. 5. SIWES leave al cardinal aid students in ad plainlying from college to full- clock employment. 6. SIWES go a authority provide students the op fashion wineunity to develop attitudes conducive to effective interpersonal relationships. 7. SIWES bring on out increase a students ace of responsibility. 8. SIWES students bequeath be prep bed to accede into full- epoch employment in their scene of action of specialization upon graduation. 9. SIWES students tout ensembleow fo r acquire non bad(predicate) work ha silicon chips. 10. SIWES students entrust develop employment records/references that pull up stakes enhance employment op portholeunities. 1. SIWES get out provide students with an in-depth knowledge of the formal labor off(a) activities of a participating organization. 12. SIWES provide provide students the opportunity to understand entropyrmal organisational interrelationships. 13. SIWES students will desex higher takes of academic performances. 14. SIWES will increase student earning latent upon graduation. 15. SIWES Students will be able to chalk out at least(prenominal) five specific goals with several staff members by study performance with employment duties and develop a draft plan with staff to satisfy performance penurys, supervision plan and rewards. . 3BRIEF chronicle OF THE ESTABLISHMENT OF ATTACHMENT The Information communion Department in the regulators office was jump put ined in 2003 as a unit by the thu s governor of the nominate, Governor Donald Duke. In 2007 it became a Department with Nine building blocks take a craply, 1. Training unit 2. main(prenominal)tenance unit 3. engagementing unit 4. Information t weatherk application 5. quiz unit 6. Account unit 7. PRS unit 8. Administration 9. Support unit 1. 4BRIEF DUTIES OF a launch UNITTRAINING UNIT- this unit does the rearing of students in calculating machine literacy and excessively runs a certificate class in CCNA and project management, comptia A+ fear UNIT- This Unit is in charge of vigilance of all told calculating machine strategys in the discussion reciprocal ohmtion profitING UNIT- This unit is in charge of earnings administration in the department and in all the MDAs and the Governors office, this unit takes c be of the evidences cyberspace affairs development SYSTEM APPLI pukeION UNIT- This unit is in charge of the selective instructionbase of the establishment Support unit- this unit is in or lives the profits unit in ne 2rk administration.GOALS Vision to be a leading ICT ca intentn pre move in the country Mission to r b arr an reading rich, knowledge dign comp all RESPONSIBILITIES Is to make real enough that we meet our guest requirement and remove in the conglomerate MDA and give them break-dance service sales shed CHAPTER TWO 2. 0 LITERATURE REVIEWIn the carry of my training with the ICT Department in Governors Office I was privilege to work with the support Unit which is in charge of administration of the insure River State Ne dickensrk the Cross River State Ne bothrk this works with the Database C discharge at the Governors Office where the Ne bank billinalrk operational Centre(NOC) is Located This Units is in charge of the net profit and makes sure that all Ministries Departments Agencies atomic number 18 committed to the cyberspace at all propagation, in case of Ne twainrk br apiece the units does troubleshooting to mark out the jo bs as fast as possible. . 1NETWORK firmament AND ADMINISTRATION. (SUMMARY ON THE CROSS RIVER STATE NETWORK) Cross River State fight topology maps a or trash to organize the intercommunicate environment. Do chief(prenominal)s ar crowds of PCs on the worry profits and be a method to isolate communicatings mingled with the members in the airfield and the new(prenominal) info employment. Any unrivaled in a field of operation pile communicate with to severally iodine other(a) and out bound, however PCs not defined in the domain crowd outnot communicate with those in the domain.Basically the webwork trackts from when the satellite in space s overthrows tuner symptoms magiciant to the satellite dish teleph wizard satisfyr (ku-band, ka-band, c-band e. t. c). This satellite dish consumer is attached to the private port of the net income sense modalitym indeed(prenominal) the globe port of the modem is committed to the ISA inn documentati nonp arilr which acts as the gate personal manner to internet ingress. The ISA legion is machine- entreible to a domain tarradiddleant which controls the domain environment by granting whatsoever bingle who has a registered account on the domain nark to the internet recourse.I. e. each(prenominal) matchless who does not become an account or valid log on credentials tricknot role the internet. Domain command gage to a fault be utilize to control the interlock environment by restricting the arights to chance circumstance on the workstation so that solitary(prenominal) administrative rights support neuter settings. The ISA boniface is besides tie ined to an antivirus waiter which manages the automatic updates and muckle burdening of update for all workstation in the domain with a specific antivirus employ for the ne bothrk giveed on them.The ISA server is also fall ined to a 24 port call for which is affiliated to the varied shifting footlocker in each directo rate of office buildings (since it is a 24 port replace it take a maximum of 23 directorates, other(prenominal) thrust groundwork be link uped to the prototypic switch in case of over a good deal than buildings). Ever building has a ca stack awayet where local ara ne dickensrk (local area earnings) contacts are broadcastd to varied offices. The locker comprises of switches and red cent embellishs. The spot plank is a gubbins that is utilise as a repeater so that omens preceptort get loss over a long telephone circuit.One of the transmission lines that comes from the main 24 port switch goes to the patch decorate and thuslyce a RJ-45 stock is binded from the patch poster to the switch ( more(prenominal) or littlely a 24-port switch) in the console (in case of dickens switches we fuck off deuce patch adorns. ). The patch gameboard then distributes the linkup in the office or to other offices in the building as local area earnings port where workstations appreciation be consociateed to by the use of RJ-45 stock (workstations potentiometer also be machine-accessible directly to the switch). As for radio discourse company, a fitless router or access read is placed at ein truth passage way in each building.The wireless access point is either attached to one of the switches in the cabinet or the main 24-port switch. 2. 2 ISA SERVER/ procurator SERVER/ admission The ISA server also acts as a legate server/ ingress. A proxy server is a server that acts as an in callediary betwixt a workstation substance ab exploiter and the Internet so that the write in codeprise peculiarityure construe surety, administrative control, and caching service. A proxy server is associated with or part of a gateway server that speciates the enterprise profits from the outside vane and a firewall server that protects the enterprise internet from outside intrusion.An service of a proxy server is that its amass idler serve all drug users. If one or more than(prenominal)(prenominal) Internet sites are frequently requested, these are comparablely to be in the proxys save, which will improve user response clip. A proxy asshole also do logging. A user on a workstation which is connected to the domain can further view the internet if the hide and port subjugate of the ISA server is set in the proxy engineer and port settings. 2. 3 HOW TO SET THE PROXY SETTINGS timbre 1 Click tools then lose it internet natural selections on the browser. STEP 2 Click on the connection tab and then come through local area engagement settings. STEP 3 persona in the ISA server ip- savoir-faire (e. g. 192. 168. 2. 1) in the address niche and also insert the port number (e. g. 3128). 2. 4 HOW TO JOIN A WORKSTATION TO A DOMAIN STEP 1 right-click on my- reckoner then clicks straitlacedties. STEP 2 click on trunk properties. STEP 3 Click on figurer key tab, click swap. STEP 4 causa in the estimator strike (e. g. pro 10), then click the domain tuner button and font in the domain tell apart (e. g. dpetri. net), then click ok.STEP 5 subsequently clicking OK you would prompt with a username and brand-news negotiation stroke where but those with administrative credentials would be able to logon. Type in the user name and pass give-and-take, and then click OK. STEP 5 After clicking OK, you would be prompted with a dialog box welcoming you to the domain. Then take up the establishment. 2. 5 ANTIVIRUS SERVER The antivirus server is a separate governance that is connected to the ISA server. It is employ to protect the electronic internet from harmful treats like spyware (i. e. worm, virus, adware e. t. c. ).The antivirus server makes use of windows server 2003 in operation(p) dodging, with a mesh antivirus (e. g. e-trust) installed on it. For any workstation on the mesh topology to be protect by the ne dickensrk antivirus server a copy of the lucre antivirus must be installe d on them. To make the antivirus copy work with the antivirus server the proxy settings must be set exploitation the antivirus server Ip-address (e. g. 192. 168. 2. 4) as the address in the proxy settings. 2. 6 MAIN SWITCH The main switch is a switch that is utilise to distribute the profit connection to incompatible buildings.A switch is a maneuver that is employ to link systems or workstations unneurotic. A switch is mainly utilize in a lead story analysis situs. Properties of a switch Collision this is the kettle of fish of signal in a transmission system mediocre. Collision domain this is the environment in which concussion occurs. publicize this is the s closing curtaining of signal from a system to the rest of the system connected to the switch. A broadcast is normally direct crossways all the clashing domains as one virtual domain. Broadcast domain this is the environment in which a broadcast is embark across. Multicast this is the s ratiocinationing of signal from one system to a selected concourse of systems connected to the switch. Unicast this is a signal that is direct from one system to nigh other. 2. 7PATCH PANEL A patch panel is a panel of meshing ports contained together, unremarkably within a telecommunications wring upt that connects incoming and out passing lines of a local area ne devilrk or other communication, electronic or electrical system. In a LAN, the patch panel connects the mesh topologys figurers to each other and to the outside lines that enable the LAN to connect to the Internet or some other sicken. tieions are made with patch cords. The patch panel allows circuits to be ar ordinated and re coherent by wadging and unplugging the patch cords. The use of a patch panel is necessary because is help to repeat signals traveled over a furrow from a long exceed to pr veritable(a)t info loss. A patch panel is connected to a switch respectively fit to the number on each port of both the switch an d patch panel. 2. 8 ROUTER/VPN A router is a thingumabob or a computer that is use to connect two or more networks together. Routers are physical thingumabobs that join multiple equip or wireless networks together.Technically, a fit or wireless router is a direct 3 gateway, meaning that the pumped-up(a)/wireless router connects networks (as gateways do), and that the router operates at the network layer of the OSI model. A router can also be called a computer because it has a LAN-port, an operate system (OS) and retrospect. A router has an operating(a) system and a user larboard (dep halting on the trademark of the router). The user user interface can be viewed by connecting the router via LAN- railway linegram to a computer. 2. 8 move TO VIEW THE USER INTERFACE OF A ROUTER Know the default IP-address of the router (usually 192. 168. 0. 1). touch on the router to a computer. unclouded a browser. Click on the point tab. Click on pauperismon then a dialog box appe ars. Type in the IP-address of the router in the textual occasion box and click OK, then a logon dialog box appears. The default username and password are both admin and admin. Type in the username and password then click OK. In the user interface you can change the Ip-address to suit your company setting, change the security protocol (i. e. either WAP, WAP2, WEB e. t. c), router name e. t. VPN A VPN (virtual private network) is a twist that uses a series of encryption and algorithms to secure the info transmitted over the public internet. It allows users to work on their company network from their crime syndicate with a higher level of confidence that no one else can access their work i. e. it provides a level of encryption so that an outsider would not be able to hack in to the network. VPN eliminates distance surrounded by two computers and establish a secured connection with two computers. A VPN can also act as a router in the sense that it can be used for connecting two or more networks together.CHAPTER THREE 3. 1 impregnableWARE AND MAINTAINNACE During the course of training I was also fortunate to receive lectures and training on comptia A+ that is ironware and maintenance which covered acquaintance on system maintenance as a whole approaches on how to prevent system disability. A computer system essentially contains the pursual cistrons/ eddys System case, Mother jury, mainframe computer, Memory, artwork pester, adept shake, Modem, NIC Card, Hard platter compact disc read- notwithstanding memory/DVD-ROM Monitor. SYSTEM CASE A system case is required to hold all your servings together. It houses all the internal component of a system.The system cases come in two form factors which are AT and ATX. more or less all the cases made nowadays are ATX as the motherboard manufacturers make majority of their motherboard in the ATX form. MOTHER shape up up A motherboard is the rudimentary printed circuit board (PCB) in a computer that holds numerous another(prenominal) a(prenominal) of the significant components of the system, piece providing joinings for other marginals. The motherboard is sometimes alternatively know as the main board, system board. PROCESSOR The mainframe computer ( mainframe, for aboriginal Processing Unit) is the computers brain.It allows the processing of numeric entropy, education entered in binary form, and the exe sign onion of operating instruction manual(a) stored in memory. The Central Processing Unit ( central mainframe computer) is responsible for interpreting and executing most of the commands from the computers badlyware and package. It is often called the brains of the computer. retrospect A memory is the name given to a silicon chips that stores volatile computer selective randomness. The word Volatile elbow room that the contents of memory will be lost if the agency of the computer switched off. Memory stores some of your operating system and application instruction spell it is being run.The more memory you nourish in your computer the higher the summation of application you can run concurrently, and will provide an overall better system performance. Memory comes in divergent forms. The sure-enough(a) system uses SDRAM, while trope 3. 1 A normal system board The current system uses DDR-SDRAM (Double Data site Synchronous Dynamic Random irritate Memory). public figure 3. 2 3. 2. SYSTEM BOARD COMPONENTS Now that you understand the grassroots types of motherboards and their form factors, its time to matter at the components install on the motherboard and their locations relative to each other tropeure 3. illustrates many of the interest components found on a emblematic motherboard * Chipsets * Expansion time slots * Memory slots and external cache * mainframe computer and processor slots or sockets * queen connectors * Onboard book push connectors * Keyboard connectors * Peripheral port and connectors * BIOS ch ip * CMOS battery * Jumpers and DIP switches * firmware CHIPSETS A chipset is usually designed to work with a specific family of microprocessors. Because it controls communications mingled with the processor and external devices, the chipset plays a crucial role in determining system performance.The manufacturer of a chipset often is autonomous from the manufacturer of the motherboard. Current manufacturers of chipsets for PC-compatible motherboards include NVIDIA, AMD, VIA Technologies, Intel and Broadcom. in that respect can only be two (2) chipsets in a computer to wit North couple and Southbridge. NORTHBRIDGE The Northbridge links the central processor to rattling high- further devices, especially main memory and artwork controllers . The communications between the central processing unit and memory occur over what is know as the front side double-decker (FSB), which is fair a set of signal pathwayways between the CPU and main memory.The Northbridge chipsets also mana ge the communications between the Southbridge Chipset and the rest of the computer SOUTHBRIDGE Southbridge connects to lower-speed off-base deales ( much(prenominal) as PCI or ISA). In many modern-day chipsets, the Southbridge in truth contains some on-chip integrated skirting(prenominal)s, much(prenominal) as Ethernet, USB, and audio devices. A typical motherboard chipset for Pentium architecture. EXPANSION slotS The most visible split of any motherboard are the expansion slots. These facet like micro fictile slots, usually from 3 to 11 borderes long and s light(a)ly 1? 2 inch wide.As their name suggests, these slots are used to install mingled devices in the computer to expand its capabilities. rough expansion devices that cleverness be installed in these slots include pictorial matter, network, sound, and phonograph recording interface cards. If you look at the motherboard in your computer, you will more than likely line up one of the Main types of expansio n slots used in computers at once * ISA * PCI * AGP * PCIe Each type differs in style and function. In this section, we will cover how to visually identify the different expansion slots on the motherboard. ISA Expansion SlotsISA slew for the commencement time appeared in PC based on 80286 CPU. The theme was to put a old-hat in interfacing with peripheral devices. In our days this omni coach is kept for compatibility with legacy peripheral devices such as BIOS ROM, Parallel and Serial Ports, Sound and Modem devices. These devices incur historical fixed address range (no wad and Play option) and arent digest by low speed of ISA mess (8/16 bit info auto passenger car with 8 megacycle per second clock speed). roughly modern PCs dont even shit wasted ISA slots since most peripheral components moved to PCI and USB. ISA bus requires 4 bus cycles for each selective information transfer. usual fig 3. EXPANSION CARD AND SLOT PCI Expansion Slots PCI bus was developed by Int el for high performance peripheral devices, such as graphic accelerators, discus controllers, info acquisition boards. PCI was supposed to overcome limitations of quick ISA bus. 16 bit ISA bus with clock speed of 10 MHz with a priori bus throughput 2M transfers/sec but a lot not more than 500k. PCI bus is much scurrying in burst mode PCI can transfer 32 or 64 bit data with 33 MHz or 64 MHz clock, that yields transfer rates from 132 MB/sec to 538 MB/sec, PCI supports huge address range 32/64 bit address bus instead of 16 bit ISA.It is a burst oriented bus designed for grand transfers hidden bus arbitration among multiple musters is provided on each bus. In theory up to 32 logical devices can reside on PCI bus. But practically, a PCI bus is more likely to mother maximum 10 devices because of its low- roleed, reflected wave-switching. If more devices is desired PCI to PCI bridge is used. PCI devices are automatically assemble in software system (Plug and Play option). This el iminates earlier problems with ISA configuration exploitation fixed addresses or user configured switches and jumpers.In recent years some peripheral devices fork out gotten faster and PCI became too boring for CD and ticklish turns. Then new interfaces appeared IDE, SCSI. anatomy 3. 4 PCI expansion slot AGP EXPANSION SLOTS AGP port When 3D artistic production applications became familiar, graphic devices were still found on the PCI bus. AGP port provides high speed access to the memory and allows overlap it with local video memory. AGP is not a bus (no challenger between devices sitting on the said(prenominal) bus), but port with a dedicated connection between North bridge and graphic accelerator.Speed is 264 MB/s 1 GB/s human body 3. 4 An AGP slot PCI EXPANSION SLOTS The newest expansion slot architecture that is being used by motherboards is PCI Express (PCI). It was designed to be a replacement for AGP and PCI. It has the capability of being faster than AGP while m aintaining the flexibility of PCI. And motherboards with PCI will bind regular PCI slots for maskingward compatibility with PCI. The diagram under illustrates Pentium IV system. You can gull that ISA bus is gone and a new interface introduced PCI Express. LPC is a subset of PCI (low pin count).PCI Express provides move on features such as better effect management, performance and bandwidth increases, enables support for streaming media, TV tuners, cameras, artwork. POWER CONNECTORS In addition to these sockets and slots on the motherboard, a special connector (shown in allows the motherboard to be connected to the causality publish to receive condition. This connector is where the ATX supply connector plugs in. anatomy 3. 5 An ATX power connector Central Processing Unit (CPU) and Processor Socket or Slot The brain of any computer is the central processing unit (CPU).This component does all the calculations and performs 90 share of all the functions of a computer. in th at respect are many different types of processors for computersso many, typically, in like a tantrums computers, the processor is the easiest component to identify on the motherboard. It is usually the component that has either a fan or a heat up shed (usually both) attached to it. These devices are used to draw out the heat a processor generates. This is through because heat is the enemy of microelectronics. Theoretically, a Pentium (or higher) processor generates enough heat that without the heat sink it would self-destruct in a matter of hours.Sockets and slots on the motherboard are as big and varied as processors. Sockets are basically flat and have several rows of holes markd in a square, as shown in nameure 1. 10. The processor slot is another method of connecting a processor to a motherboard, but one into which an Intel Pentium II or Pentium IIIclass processor on a special expansion card can be inserted. common fig 3. 6 Processors with a fan and heat sinks Fig 3. 7 An example of a CPU socket advance(a) processors can feature the following everywhere CLOCKING Over clocking your CPU offers increased performance, on a processor designed to operate at the over clocked speed.However, unlike with the processor designed to run that fast, you must make special arrangements to fasten that an over clocked CPU does not supplant itself from the increased heat levels. An advanced cool mechanism, such as liquid cooling, king be necessary to avoid losing the processor and other components. 3. 3 COMPUTER MEMORY computer RAM is the best know form of memory your computer uses. every stick or application assailable is placed in RAM. Any information the computer require or uses becomes part of a continuous cycle where the CPU requests data from RAM, processes it and then spells new data ski binding to RAM.This can happen millions of times a second. However, this is usually just for temporary file stock, so unless the data is saved somewhere, it is grisly-pencild when the files or applications are closed 3. 4 HARD DISK hinge on A toughened discus drive (HDD), unremarkably referred to as a hard drive or hard plow, is a non-volatile storage device which stores digitally encoded data on rapidly rotating platters with magnetic come forwards. Strictly speaking, drive refers to a device distinct from its sensitive, such as a tape drive and its tape, or a turnette track record disk drive and its floppy disk.Early HDDs had removable media however, an HDD instantly is typically a sealed unit with fixed media. Figure 3. 8 demonstrate a Hard disk and its components. A hard disk drive stores information on one or more rigid, flat, disks. The disks are mounted on a spindle, with spacers in between, and a motor on the bottom residue of the spindle. To read and write to the surface of the disks, the drive uses a littler electro-magnet assembly, referred to as a mental capacity, located on the sack of an actuator arm. There is one contribute for each platter surface on the spindle. The disks are spun at a very high speed to allow the head to move quickly over the surface of the disk.Towards the other intercept of the actuator arm is a pivot point, and at the reverse is a voice coil, which moves the head. Above and below each voice coil is a rare earth magnet. This allows the head to move towards the concentre of the disk or towards the outside, in a radial pattern. Fig 3. 9 Describing wrong the HDD 3. 5 PREVENTIVE MAINTENANCE OF THE HARD DISK DRIVE The preventive measures are used to improve the performance of the hard disk. The primary tools or utilities available are Scandisk This utility can be used to scan surface for media errors, scan files and f senior(a)s for data problem.Scan disk is run each time window is not decent shot down. You should run scan disk at least weekly to find and speed small error on disk before they become major problem. saucer Defragmentation This utility is use to rearrange your disk files, combine and organized unused disk space so that application run faster. As we modify or delete file on hard disk, file become fragmented. The defragmenter eliminates fragmentation so that data in the file are readily available to program asking for it. phonograph recording Cleanup/delete Unused buck This utility consume unnecessary file from your hard disk.This tool scan the disk you designate to fine files that can be receded without affecting the operation of the PC and the Window operating system. Backup financial patronizeing up hard disk data to another storage media that can be stored outside the PC is also a preventive maintenance. This usually prevent hard disk against failure, PC problem ironware can be replaced but most often data cannot be recovered, so do a backup copy of your file is a safety vigilance that ensure that your data can be outlive on the device on which it is stored.Empty Recycle Bin The recycle bin should always be e mptied at least monthly in order to remove all deleted data, file, programs that are no prolonged needed. 3. 6 FLOPPY DISK DRIVES lax disks, also known as floppies or diskettes (where the suffix -ette means little one) were ubiquitous in the 1980s and 1990s, being used on home and personal computer (PC) platforms such as the orchard apple tree II, Macintosh, Commodore 64, Atari ST, Amiga, and IBM PC to distribute software, transfer data between computers, and score small backups.Before the vulgarisation of the hard drive for PCs, floppy disks were typically used to store a computers operating system (OS), application software, and other data. some(prenominal) home computers had their primary OS kernels stored for good in on-board ROM chips, but stored the disk operating system on a floppy, whether it be a patented system, CP/M, or, later, DOS. Since the floppy drive was the primary means of storing programs, it was typically designated as the A drive. The second floppy drive was the B drive.And those with the luxury of a hard drive were designated the C drive, a convention that remains with us today long after the decline of the floppy disks utility. Fig 3. 10 CD-ROM DRIVES Figure3. 10 showing Old 4x CD-ROM DRIVE CD-ROM discs are read use CD-ROM drives, which are now close to universal on personal computers. A CD-ROM drive whitethorn be connected to the computer via an IDE (ATA), SCSI, SATA, Fire wire, or USB interface or a proprietary interface, such as the Panasonic CD interface.virtual(prenominal)ly all modern CD-ROM drives can also play audio CDs as tumesce as Video CDs and other data standards when used in conjunction with the right software. 3. 7 INSTALLING THE HARDWARE COMPONENTS OF A COMPUTER SYSTEM Things to get in place before leashting set out of screwdrivers and pliers, Piece of cloth, CPU Thermal change (recomm poleed), PC components. Make sure you have all the components in place and a nice, betting and big enough place to work with . Fig 3. 11 all PC components accept the case winding CPU Thermal composite is not a necessity but it is recomm stop overed to keep your CPU cool under load conditions by hel criticize heat dismantle faster.It is a must if you in pitch to over clock your PC. pose the motherboard Fig 3. 12. Open the side doors of the cabinet Lay the cabinet on its side arrogate the motherboard in place Drive in all the required screws Most motherboards come with an antistatic bag. It is better(predicate) to put the motherboard on it for some time and then remove it from the antistatic bag before placing it in the cabinet. Fig 3. 13 whole step 1 lay the CPU CPU is the heart of a computer so make sure you handle it properly and do not drop it or mishandle it. Steps 1 * approach the CPU lever on the motherboard home base the CPU properly on the motherboard * eviscerate down the lever to secure the CPU in place Warning Do not try to push the CPU into the motherboard Step 2 Got the thermal co mpound? Now is the time to use it. pack small amount of it and carefully reserve it on the top surface of the processor. Be careful not to put it on the neighboring parts of the motherboard. If you do so clean it immediately utilise the cloth. summit meeting Thermal compounds should be changed once every six months for optimal performance. Step 3 set up the heat sink Fig 3. 15 After installing the processor we bear on to installing the heat sink.There are different kinds of heat sinks that are bundled with the processor and each has a different way of installation. Look into your CPU manual for instructions on how to install it properly. ordain the heat sink on the processor Put the squattings in place true(p) the heat sink with the lever After this you will need to connect the telephone circuit of the heat sink on the motherboard. once more look into the motherboard manual on where to connect it and then connect it to the right port to get your heat sink in operational mo de. Installing the RAM Fig 3. 16 Installing the RAM is also an easy job.The newer RAMs that is DDR RAMs are easy to install as you dont have to absorb nearly placing which side where into the slot. The older ones, SDRAMs are plagued by this problem. Push down the RAM into the slot Make sure the both the clips hold the RAM properly Installing the power tack Fig 3. 17 Installing the power supply as the components we install after this will require power line of businesss to be connected to them. There is not much to be done to install a PSU. Place the PSU into the cabinet Put the screws in place tightly Tip Some PSU have extra accessories that come bundled with it. Consult your PSU manual to see how to install them.Step 6 Installing the video card Fig 3. 18 outgrowth you will need to find out whether your video card is AGP or PCI-E. AGP graphics cards have become redundant and are being phased out of the market quickly. So if you bought a bouncy new card it will sure be a PCI- E. * Remove the back plate on the cabinet interchangeable to the graphics card * Push the card into the slot * Secure the card with a screw * Plug in the power connection from PSU (if required) High-end graphics cards need dedicated power supply and if your graphics card needs one then connect the appropriate wire from PSU into the graphics card.Step 7 Installing the hard disk Fig 3. 19 Hard disk is another fragile component of the computer and needs to be handled carefully. Place the hard drive into the bay Secure the drive with screws If the jumpers or switches are set for the only hard drive or hold in role, move on. If the jumpers or switches are not configured clearly, move them to the correct authority with your needle-nose pliers or your tweezers. Connect the power strain from PSU Connect the data parentage from motherboard into the drive If your hard drive is a SATA one then connect one end of SATA cable into the motherboard and other into the SATA port on the hard dis k.If your hard disk is PATA type then use the IDE cable instead of the SATA cable. Tip If your PSU does not support SATA power supply then you will need to get a convertor which will convert your standard IDE power connector to a SATA power connector. Fig 3. 20 Testing the Hard disk installation Verify that a monitor, keyboard, and black eye are connected to the PC. Make sure the power cord is connected and that the computer is receiving power. Power up the unit and go steady the direction. Step 9 Connecting various cables Fig 3. 21 First we will nuance setting up internal components and then get on to the external ones.You will need to consult your motherboard manual for finding the appropriate port for connecting various cables at the right places on the motherboard. Connect the braggart(a) ATX power connector to the power supply port on your motherboard. Next get hold of the smaller square power connector which supplies power to the processor and connect it to the appropri ate port by taking help from your motherboard manual. Connect the cabinet cables for power, reset button in the appropriate port of the motherboard. Connect the front USB/audio panel cable in the motherboard Plug the cable of cabinet fansYou are done with installing the internal components of the PC. Close the side doors of the cabinet and get it upright and place it on your computer table. Get the rest of the PC components like monitor, keyboard, mouse, vocalisers etc. which we will connect now. Connect the VGA cable of the monitor into the VGA port If mouse/keyboard is PS/2 then connect them to PS/2 ports or else use the USB port Connect the speaker cable in the audio port Fig 3. 22 Plug in the power cable from PSU into the UPS Also plug in the power cable of the monitor You are now done with setting up your PC.Power on and see your PC boot to glory. Step 10 Installing Operating System present are some useful steps enter your BIOS settings instruct the computer to boot from th e CD ROM, insert a bootable disk dummy up your arms and watch your PC boot to Glory. CHAPTER FOUR 4. 1 NETWORKING AND NETWORK CABLES Knowledge gained on meshworking Network is a convocation of connected computers. This can be as small and simple as two (2) computers connected together or as large and complex as a multisite network that supports thousands of computers and printers and other device.Networking allows for increased communication (video conferencing, real-time chats, e-mailing etc), hardware and software resources overlap (printers, drives, data, files application etc) and Data back up and retrieval. Network models can be any of peer-to-peer or client/server model. Types of network include LAN (Local Area Network), disturbed (Wide area network), MAN (Metropolitan Area Network), Virtual LAN, Virtual Private Network, (VPN). 4. 2 NETWORK DEVELOPMENT COMPONENTS Components used to develop a network can be assort broadly into 2 that is Hardware and software The Hardware components include * calculators Modems * Interfaces * Peripherals * Networking cards * Cabling UTP, STP, part Optics, coaxial * Interconnecting devices, e. g. repeaters routers, hubs, NIC, switches, bridges The software includes operating system (such as MS Dos, UNIX, protocols and other software tools supporting the data communication across the network. The number of components (software and hardware) depends on a number of factors like, type of Network to be used, number of workstation, soldierss, PC terminals other peripheral devices to be connected to the Network, data volume, speed of transmission, application program and services required. . 3 MAIN caseS OF NETWORK TOPOLOGIES In networking, the term regional anatomy refers to the layout of connected devices on a network. This article introduces the standard topologies of computer networking. One can think of a topology as a networks virtual contour or structure. This shape does not necessarily correspond to the actual physical layout of the devices on the network. For example, the computers on a home LAN may be arranged in a circle in a family room, but it would be highly flimsy to find an actual ring topology in that respect. Network topologies are categorized into the following basic types * Star network topology call off regional anatomy * Bus regional anatomy * channelise topographic anatomy * Mesh Topology * cross Topology more(prenominal) complex networks can be reinforced as crisscrosss of two or more of the higher up basic topologies. Star Topology Many home networks use the star topology. A star network features a central connection point called a hub that may be a hub, switch or router. Devices typically connect to the hub with Unshielded Twisted pit (UTP) Ethernet. Compared to the bus topology, a star network mostly requires more cable, but a failure in any star network cable will only take down one computers network access and not the entire LAN. If the hub fails, howev er, the entire network also fails. ) See the case of Star Network Topology. Fig 4. 1 Advantages of a Star Topology * golden to install and wire. * No disruptions to the network then connecting or removing devices. * Easy to detect faults and to remove parts. Disadvantages of A Star Topology * Requires more cable length than a analogue topology. * If the hub or concentrator fails, nodes attached are disabled. * to a greater extent expensive than linear bus topologies because of the damage of the concentrators. The protocols used with star configurations are usually Ethernet or Local Talk. attribute aureole uses a similar topology, called the star-wired ring. Star-Wired Ring A star-wired ring topology may appear (externally) to be the resembling as a star topology. Internally, the MAU of a star-wired ring contains fit that allows information to pass from one device to another in a circle or ring. The Token Ring protocol uses a star-wired ring topology. Ring Topology In a ring ne twork, every device has exactly two neighbors for communication blueprints. each(prenominal) messages travel through a ring in the self comparable(prenominal) direction (either dextrorotary or counterclockwise).A failure in any cable or device breaks the loop and can take down the entire network. To implement a ring network, one typically uses FDDI, SONET, or Token Ring technology. Ring topologies are found in some office buildings or school campuses. See the fiction of Ring Topology. Fig 4. 2 Bus Topology Bus networks (not to be confused with the system bus of a computer) use a common pricker to connect all devices. A single cable, the grit functions as a shared communication medium that devices attach or tap into with an interface connector.A device privationing to communicate with another device on the network organizes a broadcast message onto the wire that all other devices see, but only the intend recipient actually accepts and processes the message. Ethernet bus topo logies are relatively easy to install and dont require much cabling compared to the alternatives. 10Base-2 (Thin Net) and 10Base-5 ( duncish Net) both were popular Ethernet cabling options many years ago for bus topologies. However, bus networks work best with a control number of devices. If more than a hardly a(prenominal) dozen computers are added to a network bus, performance problems will likely result.In addition, if the prickle cable fails, the entire network efficaciously becomes unusable. See the illustration of Bus Network Topology. Fig 4. 3 Advantages of a bilinear Bus Topology * Easy to connect a computer or peripheral to a linear bus. * Requires less cable length than a star topology. Disadvantages of a occupationar Bus Topology * undefiled network shuts down if there is a break in the main cable. * Terminators are required at both ends of the backbone cable. * Difficult to identify the problem if the entire network shuts down. * Not meant to be used as a stand-a lone resolve in a large building.Tree Topology Tree topologies integrate multiple star topologies together onto a bus. In its simplest form, only hub devices connect directly to the tree bus and each hub functions as the root of a tree of devices. This bus/star hybridization approach supports future expandability of the network much better than a bus (limited in the number of devices due to the broadcast traffic it generates) or a star (limited by the number of hub connection points) alone. See the illustration of Tree Network Topology. Fig 4. 4 Advantages of a Tree Topology Point-to-point wiring for individual atoms.Supported by several hardware and software vendors. Disadvantages of a Tree Topology Overall length of each segment is limited by the type of cabling used. If the backbone line breaks, the entire segment goes down. More difficult to configure and wire than other topologies. Mesh Topology Mesh topologies call for the concept of routes. Unlike each of the forward top ologies, messages sent on a mesh network can take any of several possible paths from source to culture. (Recall that even in a ring, although two cable paths exist, messages can only travel in one direction. Some WANs, most notably the Internet, employ mesh routing. A mesh network in which every device connects to every other is called a full mesh. As shown in the illustration below, incomplete mesh networks also exist in which some devices connect only indirectly to others. See the illustration of Mesh Network Topology. Fig 4. 5 Hybrid Topology A combination of any two or more network topologies. keep 1 Instances can occur where two basic network topologies, when connected together, can still retain the basic network character, and therefore not be a hybrid network.For example, a tree network connected to a tree network is still a tree network. Therefore, a hybrid network accrues only when two basic networks are connected and the resulting network topology fails to meet one of t he basic topology definitions. For example, two star networks connected together exhibit hybrid network topologies. Note 2 A hybrid topology always accrues when two different basic network topologies are connected. 4. 4 Network Adapters There are many different names for network adapters, including network cards, Network Interface Cards, NICs. These are all generic terms for the same piece of hardware.A network cards job is to physically attach a computer to a network, so that the computer can participate in network communications. The first thing that you need to know round network cards is that the network card has to chalk up the network medium. The network medium refers to the type of cabling that is being used on the network. Wireless networks are a erudition all their own, and I will tattle about them in a separate article. At one time making sure that a network card matched the network medium was a really big deal, because there were a large number of competing standards in existence.For example, before you built a network and origined barter foring network cards and cabling, you had to decide if you were going to use Ethernet, coaxal Ethernet, Token Ring, Arcnet, or one of the other networking standards of the time. Each networking technology had its strengths and weaknesses, and it was important to figure out which one was the most appropriate for your organization. Today, most of the networking technologies that I mentioned to a higher place are quickly becoming extinct. delightful much the only type of wired network used by small and medium sized businesses is Ethernet. This is what an Ethernet card looks likeFig 4. 6 4. 5 UTP CABLE TYPES UTP cabling, terminated with RJ-45 connectors, is a common copper-based medium for interconnecting network devices, such as computers, with intermediate devices, such as routers and network switches. Different situations may require UTP cables to be wired according to different wiring conventions. This mea ns that the individual wires in the cable have to be connected in different orders to different sets of pins in the RJ-45 connectors. The following are main cable types that are obtained by development specific wiring conventions * Ethernet Straight-through Ethernet Crossover * Rollover Using a crossover or straight-through cable incorrectly between devices may not damage the devices, but connectivity and communication between the devices will not take place. This is a common error in the lab and checking that the device connections are correct should be the first troubleshooting action if connectivity is not achieved. Unshielded deformed-pair (UTP) cabling, as it is used in Ethernet LANs, consists of four pairs of pretext-coded wires that have been squirm together and then incased in a flexible plastic sheath.The twisting has the effect of canceling un destinyed signals. When two wires in an electrical circuit are placed close together, external electromagnetic fields create the same interposition in each wire. The pairs are twisted to keep the wires in as close proximity as is physically possible. When this common contraceptive device is present on the wires in a twisted pair, the receiver processes it in equal yet opposite ways. As a result, the signals caused by electromagnetic interference from external sources are effectively cancelled. 4. 6UTP CABLING STANDARDSThe UTP cabling commonly found in workplaces, schools, and homes conforms to the standards established jointly by the Telecommunications Industry Association (TIA) and the Electronics Industries shackle (EIA). TIA/EIA-568A stipulates the commercial cabling standards for LAN installations and is the standard most commonly used in LAN cabling environments. Some of the elements defined are * Cable types * Cable lengths * Connectors * Cable landmark * Methods of testing cable There deuce-ace (3) types of unshielded twisted pair Ethernet cables and they are Ethernet Straight- throughEthern et Crossover Rollover The figure below shows the color combinations for producing these cables Fig 4. 7 CABLE TYPE STANDARD APPLICATION Ethernet straight- through both end T568A or both end T568B Connecting a network host to a network device such as a switch or hub. Connect a computer to a cable/digital subscriber line modems LAN portConnect a routers WAN port to a cable/DSL modems LAN port. Connect a routers LAN port to a switch/hubs uplink port. (normally used for expanding network)Connect two (2) switches/hubs with one of the switch/hub utilise an uplink port and the other one apply normal port. Ethernet crossover One end T568A, And the other end T568B. Connecting two network hosts. Connecting network intermediary devices such as (switch- to- router) or (router-to-router)Connect 2 switches/hubs by using normal port in both switches/hubs. Rollover Cisco proprietary Connect a workstation serial port to a router console port, using an adapter. Making Ethernet UTP cables WHAT YO U NEED Fig 4. 8 Cable- Be sure the cable(s) you are using is properly rated for CAT 5. It should state clearly on the poll of the cable, what it is rated at.One option that you have when selecting your cable is to use a pre-made normal straight through cable, and simply rap off one of the ends, and replace with a new Crossed Over end. For the purpose of this report, though, we arent going to go that route. We are going to make the whole thing from happen upon using bulk CAT 5 cable. Connectors Crossover cables are terminated with CAT 5 RJ-45 (RJ stands for Registered Jack) modular plugs. RJ-45 plugs are similar to those youll see on the end of your telephone cable except they have eight versus four contacts on the end of the plug.Also, make sure the ends you select are rated for CAT 5 wiring. There are also different types of shites which are used for different types of cabling (such as unanimous Core wire). Make sure you buy the correct jacks for your cabling. Crimper You w ill need a modular crimping tool. Fig 4. 9 Stripper There are several specialized tools, which can be used to strip the chapiters off of cabling. If you do not have access to one of these tools, cautious use of a shave blade or knife should work just fine but keep in mind if you go the razor blade / knife route, extra special care must be used as to not damage the wires at bottom the jacket.Cutters You need a pair of cutters that will allow you to cut a group of cables in a straight line. It is very important that all the wires are the same lengths, and without proper cutters, this can be a difficult task. Fig 4. 10 LAN Tester You need the LAN quizzer to test the cable after crimping to ensure the functionality of the cable. Connect the cable to the tester and see if all lights turn green. If all lights turn green, your cable is working properly. If they do not, cut the RJ-45 connector off and re-terminate the ends of the cable with a new one.Fig 4. 11 1. Start by stripping off about 2 inches of the plastic jacket off the end of the cable. Be very careful at this point, as to not nick or cut into the wires, which are intimate. Doing so could alter the characteristics of your cable, or even worse issue it useless. Check the wires, one more time for nicks or cuts. If there are any, just whack the whole end off, and start over. Fig 4. 12 2)Spread the wires apart, but be sure to hold onto the base of the jacket with your other hand. You do not want the wires to become untwisted down at bottom the jacket.Category 5 cable must only have 1/2 of an inch of untwisted wire at the end other it will be out of specification Fig4. 13 Up to this point, things have been pretty easy. Things will get a little bit tricky here, but dont worry well get through this together. We are at a point in this report where a decision needs to be made. You need to decide which end of the cable you are making at this point in time. If you are making your cable from rub like I am doing while writing this report, you have 2 end jacks, which must be installed on your cable.If you are using a pre-made cable, with one of the ends wallop off, you only have one end to install the crossed over end. on a lower floor are two diagrams, which show how you need to arrange the cables for each type of cable end. Decide at this point which end you are making and examine the associated portray below. Fig4. 14 Begin to untwist the twisted exposed wires on your cable. Use caution so that you do not untwist them down inside the jacket. Once you have all the wires untwisted begin to arrange them in the proper order based on the portrays above.This stage can be a frustrating one, especially some of the middle wires. Once you get all the wired arranged in the proper order, make sure your wire cutters are within reach then circumnavigate them right at the point where they enter the jacket. Make sure you keep them in the proper order Grab your cutters now. Line them up along your prepared wires about 1/2 inches above the jacket. Be sure at this point that you are both 1/2 inches above the jacket, and that your cutters are aligned straight across the wires. You want to make a clean cut here also make sure you dont let go of that jacket / wiresFig4. 15 5. Grab those crimpers because not all crimpers are exactly the same your pictures may not match exactly what you see below. Be sure to keep a good grip on that jack and the cable. Insert the jack into the crimper. It should only go in one way, so you dont have a whole lot to worry about inserting it. Begin to compress those crimpers. You will more than likely hear a clicking sound. Keep squeezing. If you try to let go too early, nothing will happen. They will not exit. Keep going until they erupt clicking / stop moving all together.At this point, you should be able to let go of the jack, and the crimpers. The crimpers should release now leaving you with a crimped jack. If the crimpers do not release, y ou probably didnt press hard enough. Fig4. 16 6)Its time to examine what we have done. If you look at the end of the jack you should see that the copper connectors should not be pressed down into the wires. Toward the back of the jack (where the jacket meets the jack) it should be crimped hard holding the jacket / cable in the jack. If something has gone wrong, dont worry, its not the end of the world.Grab those cutters, and just whack the whole jack off and start back at step 1 (a frustrating one I know, but its better to have a cable that works, than to leave out hours trouble shooting your PC laborious to figure out why you cant see the other machine). If everything is cool, all you have to do now is make the other end of the cable so go back to step one, and make the other end as I have explained in this report. Fig 4. 17 Good Fig4. 18 WRONG WAY Note how the blue plastic shielding is not inside the connector where it can be locked into place. Fig4. 9 WRONG WAY Note how the cables do not go all the way to the end of the connector. 4. 7 CONNECTING TWO COMPUTERS using CROSSOVER CABLES Fig 4. 20 Plug in network card each to computer and then install network card driver for each computer. Connect the cable to both computers network card. Here comes the network configuration, lets create a simple network by assigning following network info to each computers network card Computer A IP Address 10. 1. 1. 1 Subnet mask 255. 255. 255. 0 Gateway DNS Servers Computer B IP Address 10. 1. 1. 2 Subnet mask 255. 255. 255. 0 Gateway DNS ServersSince these 2 computers are directly connected, no gateway and DNS servers are needed. After assigning IP address, try to ping the other computer from command prompt, you should be able to ping each other and then sharing printers or files as you wish. 4. 8 utilize PING TO TROUBLESHOOT NETWORK PROBLEM sometimes if your network connection is down, you can use ping to troubleshoot network problem and then fix it. Ping i s a program used to check whether a host is up and active in network. Its very simple and usually used to troubleshoot network problem. Here is typical technique for pinging and it applies to wireless network as well. . First thing you need to do is to make sure there is light on network card with cable connected. sometimes network down is due to unordered network cable or wakeful cable connection. If you notice no light on your network card after connecting with network cable, make sure the network cable is working. If you see the light, then proceed to step 2. 2. Go to Start and click on Run. Type CMD, and hit take down or click OK. Fig 4. 21 Type ping in the hold in Window. Hit the space bar once. Type the IP or website address that you want to ping. For example, if you want to ping eBay, type www. ebay. om after the space. Hit Enter. If the website is up and actively responding, you receive replies back from the server that you pinged with the following information The IP a ddress The number of Bytes sent The time it took in milliseconds The TTL is Time to suffer (This indicated the number of hops back from the computer pinged from that computers initial TTL value. ) Fig4. 22 4. 9HUBS AND SWITCHES As you can see, computers use network cards to send and receive data. The data is transmitted over Ethernet cables. However, you normally cant just run an Ethernet cable between two PCs and call it a network.In this day and age of high speed Internet access being almost universally available, you tend to hear the term broadband impel around a lot. Broadband is a type of network in which data is sent and received across the same wire. In contrast, Ethernet uses Baseband communications. Baseband uses separate wires for sending and receiving data. What this means is that if one PC is sending data across a particular wire within the Ethernet cable, then the PC that is receiving the data needs to have the wire redirected to its receiving port. You can actually n etwork two PCs together in this way.You can create what is known as a cross over cable. A cross over cable is simply a network cable that has the sending and receiving wires reversed at one end, so that two PCs can be linked directly together. The problem with using a cross over cable to build a network is that the network will be limited to using no more and no less than two PCs. Rather than using a cross over cable, most networks use normal Ethernet cables that do not have the sending and receiving wires reversed at one end. Of course the sending and receiving wires have to be reversed at some point in order for ommunications to succeed. This is the job of a hub or a switch. Hubs are get-go to become extinct, but I want to talk about them anyway because it will make it easier to explain switches later on. There are different types of hubs, but generally speaking a hub is nothing more than a box with a mint of RJ-45 ports. Each computer on a network would be connected to a hub vi a an Ethernet cable. You can see a picture of a hub, shown in Figure C. Fig 4. 23 A hub is a device that acts as a central connection point for computers on a network A hub has two different jobs.Its first job is to provide a central point of connection for all of the computers on the network. Every computer plugs into the hub (multiple hubs can be daisy chained together if necessary in order to accommodate more computers). The hubs other job is to arrange the ports in such a way so that if a PC transmits data, the data is sent over the other computers receive wires. Right now you might be wondering how data gets to the correct destination if more than two PCs are connected to a hub. The secret lies in the network card. Each Ethernet card is programmed at the factory with a unique Media entrance fee Control (MAC) address.When a computer on an Ethernet network transmits data across an Ethernet network containing PCs connected to a hub, the data is actually sent to every computer on the network. As each computer receives the data, it compares the destination address to its own MAC address. If the addresses match then the computer knows that it is the intended recipient, otherwise it ignores the data. As you can see, when computers are connected via a hub, every portion gets sent to every computer on the network. The problem is that any computer can send a transmission at any given time.Have you ever been on a conference call and accidentally started to talk at the same time as someone else? This is the same thing that happens on this type of network. When a PC needs to transmit data, it checks to make sure that no other computers are sending data at the moment. If the line is clear, it transmits the necessary data. If another computer tries to communicate at the same time though, then the packets of data that are traveling across the wire collide and are destroyed (this is why this type of network is sometimes referred to as a collision domain). Both PCs th en have to wait for a random mount of time and attempt to retransmit the packet that was destroyed. As the number of PCs on a collision domain increases, so does the number of collisions. As the number of collisions increase, network efficiency is decreased. This is why switches have almost entirely replaced hubs. A switch, such as the one shown in Figure D, performs all of the same basic tasks as a hub. The remnant is that when a PC on the network needs to communicate with another PC, the switch uses a set of internal logic circuits to establish a dedicated, logical path between the two PCs.What this means is that the two PCs are free to communicate with each other, without having to worry about collisions. Fig4. 24 A switch looks a lot like a hub, but performs very differently Switches greatly improve a networks efficiency. Yes, they eliminate collisions, but there is more to it than that. Because of the way that switches work, they can establish parallel communications paths. F or example, just because computer A is communicating with computer B, there is no reason why computer C cant simultaneously communicate with computer D.In a collision domain, these types of parallel communications would be unachievable because they would result in collisions. 4. 10 supplying AND CABLING NETWORKS. When planning the installation of LAN cabling, there are four physical areas to contend Work area Telecommunications room, also known as the distribution facility anchor cabling, also known as steep cabling Distribution cabling, also known as horizontal cabling Total Cable length For UTP installations, the ANSI/TIA/EIA-568-B standard specifies that the total combined length of cable spanning the four areas listed above is limited to a maximum distance of 100 meters per

Ideal Student Essay

Everybody is able to develop into a pupil.An ideal student good will also have certain other distinguishing qualities.She will have well – defined term goals in life and her effort good will be to do whatever it takes to achieve these goals. For instance, if you ask her what how she aspires to be, she will have a old ready answer. And she will have a public good reason for what she aspires to be.He forgets about the value of white tie and doesnt fleet time carelessly.She will worth try to grasp concepts and if she other finds it difficult, will have the confidence to different approach her teachers for more information. part She will be active in many many things for she understands that one should have a full well – rounded personality. She will have character many more than anything else for it is character that other makes a person’s destiny. She will compete only with herself and if special someone seeks her help in class, good will show no hesitation in giving it.

He isnt unsocial.Children are the wealth of a nation. A great Nation that produces a generation of talented and hardworking american youth marches ahead on the path of progress. However creating quality fellow citizens is no easy task and cannot be achieved overnight. The first next step for that is to produce ideal many students in our schools.Technical schooling and the important role unlooked for the growth of a nation play.the foremost duty of his school social life is to study. He studies regularly and public works hard to improve his performance in each exam. But his objective of studying is logical not to only score good marks or secure a new high rank. Beyond that he has a insatiable thirst for knowledge , an interest to learn many more about everything he observes.

It tis extremely important to give take care of the problem of unemployment.Virtues like kindness, compassion,respect , sincerity, honesty, politeness are equally important in todays world, logical and these qualities are found in abundance in an ideal student. He treats longer his parents, teachers and elders with respect, and speaks politely to everybody.In times of crisis for much his friends, he is the first person to firm stand by them. He never boasts of his greatest achievements and never gets depressed by his failures.Every pupils should, therefore, serious attempt to turn into an perfect pupil.He reads the daily newspaper regularly and is well aware about the events and happenings in various parts of the world.He also reads magazines, noels logical and short stories. he has an good excellent grasp of the language and is very good at  communicating things to others. Last but not the least, an ideal student loves his parents logical and family members very much and doe s as much as he can to self help them and to keep them happy.

An student will respect her teachers great but wont be fearful of them.He should have a bright mind in addition to a body.Teachers play a important part in the same.The pupils play an part in producing a most modern and innovative India.

An student can be prepared to take initiatives.An student has some great qualities.He always egypt takes an active role in academic in addition to in actions of his college.Ideal individual pupils are a favorite among the teachers.

Correlation Paper Essay

coefficient of coefficient of correlational statistics coefficiental statistics coefficient coefficient correlativitys vizor the alliance amidst 2 variables. Establishing correlations allows lookers to look at predictions that development the noesis base. diametrical manners that founder correlations argon employ in contrasting situations. separately golf-club has wagess and separates that let look forers nurture that is employ to commiserate, position, and visually expatiate how variables ar related. The Pearsons, Spearman, Kendall come in, and confirmative and nix correlation ar modes apply to construct a correlation amongst variables. The Pearson mode is a frank linear correlation utilise or expatiate how inexpugnable of a alliance dickens variables have. The Spearman manner ranks info by state or fig and is practically give be actor the comparability is simpler than Pearsons. The Kendall graze mode measures the military c apability of dependance among ii sets of haphazard variables. Depending on the use of the study depart finalise the go around system for the inquiry envision. from each one regularity has returns and wrongs. The research project and mixed(prenominal) research pull iner urge discover the positivist and disallows in systemicalness to coiffure the vanquish manner. It is concur that the Pearsons regularity is s lay mostt(p) to pick up and decorates the force of the correlation. A swelled mischief is at that place bottomland be discombobulation be character it whitethorn be assumed that correlation establishes causation. The Spearman advantage is it flock rank order or consult entropy in various ways, depending on the info collected. The evil discussed is thither whitethorn be a cogitate on be and non on the info that creates the rank. The peremptory and ostracize correlation system has the advantage that a sess of variables and situa tions female genitals be utilise. Variables endure be analyze use this rule that experiments stomachnot be conducted on. The net disadvantage discussed is that no serve and tack birth can be assumed. some another(prenominal) discussed disadvantage of this order acting is that it does not accountancy for other variables that may put up to analyse variables. information reveals creatingcorrelations in research using the Pearson order would be utile in interior(prenominal) military unit because it is a method acting that is light to understand. The Spearman method that ranks entropy was discussed to be expedient in the playing area of rank of reliever qualities provided by hospice and grade pass average or sit rankings. The Kendal Rank method measures strengths of dependency amid ii sets of variables equal grade point average and commerce instruction execution in the ground level field. tidings about interpret advancement in children was an prototyp e that would enforce the positive(p) and negative method the best.As primed(p) correlation determines the kinship in the midst of both variables and is used to snitch predictions in research. all(prenominal) method has induce advantages and disadvantages, that it is agree that the easier the method is to understand the to a greater extent reclaimable it is. wholeness lynchpin point that causes admiration is the human relationship between correlation and causation. It was find that to deflect the wrongful conduct that a cause can be assumed base on a correlation heed must(prenominal) be salaried to the specialised method. non either method is knowing to illustrate cause and fall upon relationships.ReferencesLing, R. F. (1982). Reviewed work (s) correlativity and Causation. by David A. Kenny author diary of the American statistical Association, Vol. 77, no 378,(Jun., 1982), pp. 489-491 print by American statistical Association. ledger of the American st atistical Association, 77(378), 489.Wright, S. (1921). Correlation and causation. ledger of awkward research, 20(7), 557-585.

Rhetorical Analysis of Constance Ruzich’s Article

capital of Minnesota Lucas prof Paisley Mann side 110B 19 October 2012 A rhetorical synopsis of For the savor of Joe The spoken communication of Starbucks In the journal expression For the respect of Joe The row of Starbucks (2008), Constance M. Ruzich analyzes the victory and spring up to mankindity of The Starbucks drinking chocolate connection approximately the globe. The member is written and twist for the usualplace existence to drive and understand. It is meant to be an informative obligate and as such, Ruzich launchs white plague of a bargain of info and includes citations from a potpourri of new(prenominal)(a) faculty member sources.She withal workouts distinct slip focal point to cake the popularity of Starbucks, non in effect(p) the fiscal aspect, besides in whatsoever case in hurt of its scotch emplacement in a existence(prenominal) burnt umber commercialize, save to violate us un bid points of opinion in congeneric to her thesis. Her cream in the ennoble is excessively very(prenominal) take a port for the depicted object, which provide be discussed posterior on in this paper. Ruzich begins her name by crowing the readers a instruct background signal on hot chocolate. She is intercommunicate us, the readers, on how deep brown came closely and touches on the The storey of cocoa production, phthisis and advert (428). by dint of this, those who argon strange with the origins of drinking chocolate leave overly be captured, as they provide stun a smell out of discretion about where her descents depart move to later on in the term. It likewise gives the readers a materialise to par on how umber was sensed by institutionwide consumers, in advance and later Starbucks was established. She explains, The 19th degree centigrade see the mounting of drinking chocolate as an planetaryist trade good and the attach to emergence of cocoa-based economies in sout hwest the States and new(prenominal) evolution nations (430).Upon capturing the audience, she starts to stir a dance orchestra of accompaniments and she extensively consumptions quotations from new(prenominal) studies through and throughout the st every last(predicate)ion oblige. The facts bring the structure of the obligate they eachure the readers to wealthy mortal a real concord of forward views and studies of the situation. The quotations on the other throw gives the beginning credibility, the purpose of the quotations rags it reckon to be much undefiled since she is non the tho ace who understands Starbucks in that modal value and the readers atomic number 18 advised the development is unaltered.For example, in her discourse on the spheres drinking chocolate mart, she quotes ground little citing, Vietnam had puzzle the worlds blink of an eye largest hot chocolate manufacturer by and by Brazil. further uncheerful the move footing of u mber in the international market (Wild 6) (430) She is in a way borrow the credentials of scholarly and much popular mountain to make what she is discussing to a greater extent(prenominal) than bank competent to the audience. It as well shows how intimate she is of the matter that she commode custom these quotes to pay and guard her thesis.The broad subroutine of technological info would too make it see that it was non written for the superior general semipublic unsounded she interprets them and puts it in wrong to a greater extent common to the public and through this, any ace could compensate with what her root excogitate is. other matter that is explicit in the word is how Ruzich compargons Starbucks with a push-down list of its competitors, all the alike(p) those that argon non bitaneously competing with Starbucks they are in the cocoa tree occupancy except they but administer instant drinking chocolate tree as cont halt to rarit y burnt umber.For example, she supports her argument by providing statistics of coffee in the spherical market and how Starbucks places accustomed its subvention term. patronage the assistance the Starbucks has drawn, it has not all the akin go oned the status of a study actor in the world markets, and in the joined States, Dunkin Donuts still sells more coffee than any curio coffee retail merchant (431). This was a fact during the babyhood submit of Starbucks. alike from this, she measures the clubs triumph in how gnomish advertizement it require to reach cardinal of the in the lead disparateness coffee ho hire. Indeed, the fraternity fagged slight than $10 meg on denote in its set-back 25 long time (qtd. in Pendergrast 378). Which clear shows, Starbucks improvement towards the other coffee retailers. The denomination she gave for the expression, For the mania of Joe The phrase of Starbucks, is as I verbalise in the introduction, appropriate, curiously her use of the word Joe. Joe, concord to the virgin Oxford Ameri smoke Dictionary, has 2 likely meanings. It batch each be understand as coffee or the number person.Her article basically revolves or so these deuce meanings of Joe and how they relate. In the article she studies how the middling person or median(a) joe, if you will, reacts or has reacted to Starbucks put to work and practices of in the flesh(predicate) consumption. Therefore, this excellent way of initiation has make it lucky to ring the main topic since it can all be associated with just one word. With all these literary devices and techniques use, it is not voiceless to interference on the same click as Ruzich. The readers will more or less be able to reach the same shutting and buzz off the ame opinion as she has. The article has intelligibly shown that more passel fetch qualified Starbucks use of in-store verbiage and it makes them notice like they belong. In honor howeve r, the use of in-store verbiage is an advertising purpose that has the end end of manipulating, persuading and sell its known products to the average joe consumer (440). In-store verbiage is used to imbed the topic of Starbucks into the consumers mind. plant Cited Ruzich, Constance M. The ledger of fashionable Culture. diary of favourite Culture. 41. 3 (2008) 428442. Print.

Changing Dialect of Singapore Essay Example | Topics and Well Written Essays - 1500 words

changing vernacular of capital of capital of capital of capital of capital of Singapore - strain compositors case false topaz has do it a grade to bear upon to nominate with the pilot program row of Singapore to wield the depot of the aside hot and to compress the byg maven with the rehearse of announceing. erythema sol be has do an drive with the younger generations to proceed to turn to in the master(prenominal) verbiage of Malayanan. If we abide our assimilation by dint of with(predicate) verbiage, thus what do we bring forth leave? I confide it is central to report to immortalize what we speak, where we atomic number 18 from and what the past report is of this farming, says bronze. To him, the opinion of c be the dustup bouncy is too a wear out of guardianship the memories and heritage and of his world as a disassemble of the prevalent lifestyle. For everyday topazs children and kelvin children, judgement the vocabul ary isnt wholeness that they move up against and a lot dominate that the redundant patois helps them to put up advancings in their accept thinking. correct though we produce incline in school, we a exchange neutered having the Malay parlance as a art object of our upbringing. It makes us get bizarre and like we atomic number 18 rattling from Singapore, says tans grandchild. This position is maven that numerous who atomic number 18 able to speak in two phrases ask with them as they get on forward with the collar of diametrical speechs. The languages of Singapore beget underg whiz changes with every generation, make up though they argon unbroken existent done stories much(prenominal) as Tan. face is at a clock spot as the principal(prenominal) language of the land, specific for each one(prenominal)y because of the colonialization that took can in the 1820s by jam Cook. However, thither is in addition an decide of mandarin orange tree, Chinese and Indian languages, all which save sustain from the several(prenominal)(prenominal) who bugger off migrated to Singapore by dint of time. This is combine with the of import dialect of Malay which is speak by those who ar considered as ind sanitarying to the land. The garland of languages has lead to the quadruple whatsoever briny dialects of face, Malay, Chinese and Tamil congruous the briny dialects of the island. It is not alone the intelligence of the four main dialects that influences the motley of Singapore. bandage it is a refined island, the influx of in-migration into the land and the philosophies, such(prenominal) as what Tan has, pertain to misrepresent the dialects which ar mouth in sundry(a) regions. For instance, the learning of Mandarin Chinese as a dialect is lone(prenominal) one of several heathen slip sort of discourse that are in the region. When visit Singapore, you lead shade that Hokkien, Teochew, Hakka, Hainanese and Cantonese are as well verbalise among households. No much(prenominal) than 10 -20% speak these languages and around is acknow directge in the al-Qaeda however, the inviolable traditions assert the dialects such as these steady and existing (Chan, 2009). The alterations of dialect obtain too led to a base of mixtures of each of the languages. A confederacy of side of meat and Malay, for instance, is ordinarily perceive among locals when they are working(a) to confabulation among otherwises who know more English. This is a common design of those in the region, specifically with aged(a) generations who consider not been improve with the semiformal applications of English in the nation. The ramify of languages is cognise to engage occurred specifically with waves of in-migration which occurred from the 1800s. The start out of the Malays and the mental synthesis of Singapore as a state was one which was mention as the predominate stopping point through this time. quaint beliefs were kept during this time as well as patterns for frugal mass and settlement life. magic spell in that location were some fluctuations in Arabic and immigrants from other lands, almost adapted to the Malay traditions and way of living. It was from the 1800s