Computer components

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B B Emmanuel bbemmanuellgmailcom +2348062451455 P a g e 1 | 31

COMPUTER COMPONENTS

TABLE OF CONTENT

Chapter 1 Introduction

Chapter 2 Processor

Chapter 3 Motherboard

Chapter 4 RAM

Chapter 5 Hard Disk

Chapter 6 Card

Chapter 7 Peripherals

Chapter 8 Case and Power Supply



CHAPTER ONE

INTRODUCTION

Your PC (Personal Computer) is a system consisting of lots of components Some of those

components like Windows XP Windows Vista Windows 7 Windows 8 and all your other

programs are software That is why we say Software are programs that enhances the functionality

of your computer system While the electrical mechanical and physical component parts of the

computer that you can actually see and touch are hardware

HARDWARE

The hardware are the electrical mechanical and physical component parts of computer itself

including the Central Processing Unit (CPU) and related microchips and micro-circuitry keyboards

monitors case and drives (hard CD DVD floppy optical tape etc)

Other extra parts called peripheral components or devices include mouse printers modems

scanners digital cameras and cards (sound colour video) etc

The devices which are Necessary to assemble a computer

Motherboard

Processor

Memory

Hard Drive

Video Card (if motherboard didnt come with it)

Sound Card (if motherboard didnt come with it)

Modem andor Network Card

Floppy Drive

CD-Rom

Keyboard and Mouse

Case And Power Supply

Monitor



CHAPTER TWO

PROCESSOR

The Central Processing Unit Which is often referred to as the ldquoProcessorrdquo is the brain of the

computer The chip that performs the majority of calculations and instructions needed to make your

computer run Without this chip no other function of the PC is possible The processor is attached

to the motherboard (Processor slot)

THE SPEED OF THE CPU

The computers speed or clock rate is integral to its overall design The computers clock rate is the

frequency at which it can execute a set of instructions Computer clock rates are measured in

Megahertz (million of clock ticks per second)

There are two types of speeds that should be considered when evaluating the system performance

Internal clock speed ndash Is the speed at which the processor can obtain information within itself like

with internal cache and registers (Pentium III 800 MHz the 800 MHz is the internal clock speed)

External clock speed ndash Is the speed at which the CPU communicates with components outside

itself



SOME COMMERCIALLY AVAILABLE PROCESSORS

Pentium I-IV

Celeron

Athlon

Duron

Cyrix C3

Itanium (64 bit)

Opteron (64 bit)

HOW TO CHOOSE A CPU

When you are choosing one CPU always consider your computing needs when selecting a CPU If

you want to do simple word processing or general computer tasks go for the budget or low end

processors If you are more into gaming or do CPU intensive work like video editing go for a mid-

range or high-end processor



CHAPTER THREE

MOTHERBOARD


Chapter 32 How to Choose a Motherboard

MOTHERBOARD

The motherboard is the main circuit board inside your PC Every components at some point

communicates through the motherboard either by directly plugging into it or by communicating

through one of the motherboards ports

The motherboard is one big communication highway Its purpose inside your PC is to provide a

platform for all the other components and peripherals to talk to each other



Modern motherboards come with the following features

Processor slot Processor slot is used for processor

Memory banks Memory banks are used for RAM modules

AGP slot AGP slots are used for graphics accelerators

PCI slots PCI slots are used to provide connectivity for PCI cards such as modems and

sound cards

IDE IDE are used to connect and control IDE devices such as hard drives and CD-ROM

drives

USB ports USB ports are used to connect USB devices

These are just some of the features that a motherboard may have as standard some motherboards

come with integrated components such as a sound card graphics card modem NIC (Network

Interface Card) and more

TYPES OF MOTHERBOARDS

The type of motherboards depends on the CPU it was designed for You can therefore categorize

motherboards by which socket type they have eg Socket A Socket 478 etc



The Type of motherboard you buy is very important as it will need to house your CPU and they are

not interchangeable When buying a motherboard it will always tell you what socket type it has

HOW TO CHOOSE A MOTHERBOARD

As everything you have on the PC at some point needs the motherboard you need to consider

these components when buying a motherboard For example if you have a lot of devices with a PCI

interface that you wish to use there is little point buying a motherboard that only offers you 3 PCI

slots Like wise with memory you have to make sure that there are enough slots for the amount of

memory you have or wish to have

The motherboard also needs the correct type of interface for your Memory Graphics card Hard

disks and other items as well You will find that most motherboards offer everything you need

however it needs checking on when buying Itrsquos especially important to pay detail to your

motherboard if you want to use older components which a new motherboard may or may not

support

The major difference between motherboards that support the same CPU is the model of the chipset

(more on the chipset later) Different chipsets offer different performance and different features in

terms of memory support AGP port speed Multiplier numbers Bus speeds and much more

When you are choosing one motherboard you have to consider

WHATS YOUR PROCESSOR

First and most important thing to consider when buying your motherboard - what CPU or processor

are you using Motherboards are made differently not all motherboards will support all CPUs

What CPU you select will determine the type of motherboard you get For example if you want to

use an Intel Pentium 4 CPU the motherboard you select must be able to support that brand and

model of CPU

The motherboards are also designed to support specific speeds for a CPU so make sure it can

support the speed of the processor as well



CHOOSE YOUR CHIPSET

What is a chipset Well chipsets are the main controllers on the motherboard - they allow the CPU

to interface with the various components and expansion cards installed

When choosing your chipset always bear in mind the type of memory supported by the

motherboard Make sure that the board supports the type and amount of RAM you need Generally

choosing a chipset that supports high speed memory will allow your system to perform better

WHAT IS A MOTHERBOARD CHIPSET

A motherboard chipset controls all the data that flows through the data channels (buses) of the

motherboard The primary function of the motherboard chipset is to direct this data to the correct

areas of the motherboard and therefore the correct components

EXPANSIONS SLOTS AND CONNECTORS

If you intend to various peripherals to the computer then the number and type of expansion slots

and connectors is important By default most motherboards these days have USB 20 ports

incorporated into their design

If you intend to buy expansion cards make sure the board comes with an ample number of PCI slots

OTHER FEATURES

These days most motherboards have a whole host of extra features loaded into them These can

include things such as on-board VGA audio a RAID controller Modem or Network Card



CHAPTER FOUR

RAM

RAM (Random Access Memory) is the basic working memory of your

computer system A computer used RAM to hold volatile (Temporary)

instructions and data needed for processing Volatile simply means that it

is not permanent which means anything written to RAM will be loses if

the machine loses power or if its turned off

Another key point about RAM is that data stored in it can be accessed much more quickly than data

retrieved from the hard disk Theoretically data retrieved from RAM is accessed 100 to 300 times

faster than the same information from a hard disk optical drive or a floppy

Memory is measured in bytes so youll often encounter the terms megabyte (MB) and gigabyte

(GB) in describing RAM sizes (a megabyte is a million bytes a gigabyte a billion) RAM is

something that you do not want to skimp on You can choose a slower processor but with RAM you

want as much as you can get

TYPES OF RAM

1 SDRAM

2 DDR

3 DDR2

4 DDR3


B B Emmanuel bbemmanuellgmailcom +2348062451455 P a g e 10 |

31

1 SDRAM

Almost all systems used to ship with 33 volt

168-pin SDRAM DIMMs SDRAM is not an

extension of older EDO DRAM but a new type

of DRAM altogether SDRAM started out

running at 66 MHz while older fast page

mode DRAM and EDO max out at 50 MHz

SDRAM is able to scale to 133 MHz (PC133) officially and unofficially up to 180MHz or higher As

processors get faster new generations of memory such as DDR and RDRAM are required to get

proper performance

2 DDR MEMORY (184-PIN DIMMS)

These were introduced in 2002 to replace the earlier SDRAM format To use this type of memory

you need a 184-pin socket for the module to fit into

DDR Memory is available in different speeds of

PC2100 PC2700 PC3200 (DDR400) and

PC4000 (DDR500) The modules can be used singly or how desired however you cannot mix

different speeds together

3 DDR2 Memory (240-pin DIMMS)

This format builds on the technology of DDR

This standard has more pins and its main

developments are the ability to run faster

whilst consuming less power

To use DDR2 memory you need a 240-pin



31

socket for the module to slot on your motherboard DDR2 Memory is available in many different

speeds including PC2-3200 (DDR2400) PC2-4200 (DDR2533) and PC2-5300 (DDR-667)

The modules can be used singly or you can install different speeds of DDR2 memory together if

your motherboard supports the faster speed however faster modules will perform at the lower

speed

This may be worth considering if you want to run Dual-Channel memory where you must use the

same speed and ideally matching pairs to ensure compatibility

4 DDR3 MEMORY (240-PINS)

This is the latest memory standard (2008

onwards) taking over from the previous DDR

and DDR2 standards Although DDR3 comes

with 240-pins the same as DDR2 the notch is in

a different place so people can not install the wrong type

DDR3 is not backward compatible with DDR2 in addition to the notch the voltage runs at a lower

15V than DDR2 18V DDR3 memory will not fit into a standard DDR2 DIMM socket or an earlier

DDR memory socket

To use DDR3 memory your system motherboard must have 240-pin DIMM slots and a DDR3-

enabled chipset



31

CHAPTER FIVE

HARD DISK

The hard disk (or hard drive) is the

permanent storage area of your

computer It stores information whether

the computer is on or off A hard drive is

a mass storage device found in all PCs

(with some exclusions) that is used to

store permanent data such as the

operating system programs and user

files

The data on hard drives can be erased

andor overwritten the hard drive is

classed as a non-volatile storage device

which means it doesnt require a constant power supply in order to retain the information stored on it

(unlike RAM)

Inside every hard drive are small round disk-like objects made of either an aluminumalloy or a

glassceramic composite these are called platters each platter is coated with a special magnetic

coating enabling them to store data magnetically Hovering above these platters are readwrite

heads that transfer data to and from the platters

Hard drives come with many different storage capacities hard drive capacity is measured in bytes

with common capacities being stated in MB (Megabytes) and GB (Gigabytes)



31

HARD DRIVE RPM SPEEDS

You will often see hard drives advertised as being capable of a certain RPM (Revolutions Per

Minute) this figure (as the name suggests) refers to how many times the spindle makes a complete

360 Turn in any single minute

RPM values range from about 5400RPM to 12000RPM and above

HOW TO CHOOSE A HARD DRIVE

When you are choosing one Hard Drive you have to consider

ATA and SCSI

In the hard drive world there are two data access standards ATA and SCSI (pronounced Scar-

Zee) Most of normal hard drives were used to rely on the PATA standard Some newer hard drives

use the SATA standard

SATA allows transfer speeds of up to 150 MBs while PATA gives up to 133 MBs However to use

SATA youll need a Serial ATA controller a SATA drive and a SATA power cable The speed

difference between PATA and SATA is also not significant unless you have a high-end SATA drive

The SCSI standard is a very fast hard drive standard used for professional computer systems which

demand extremely fast data access SCSI drives provide an access time of about 95ms - which I

feel is really not needed for average home use

DISK SPACE VS PRICE

An important factor to consider is the disk space versus price ratio When you look at the 30 GB 40

GB and 80 GBPATA hard drives youll find they are very close in price For the average home user

however 40 GB to 80 GB of disk space is plenty

DRIVE SPEED

If data access speed is important to you you can go for faster SATA drives or SCSI drives But

remember that these drives come at a price premium and may not be necessary for average home

use



31

CHAPTER SIX

Chapter 61 Video Card

Chapter 62 Sound Card

Chapter 63 Modem Card

Chapter 64 Network Card

VIDEO CARD

VGA Card is the one

sending the monitor signal

to the monitor

A computer video card is

placed in the

motherboard where it

transfers video signals

through a cable to your

monitor The video card

can either be built into the motherboard or be a separate card that is placed in either the AGP or

PCI-Express Slot

The computer graphics cards major job in a computer is to convert graphic patterns into signals for

the monitors screen However in recent times as the graphics card has become more advanced it

has taken some of the jobs previously assigned with the CPU and through a graphics pipeline adds

2D and 3D effects and it also adds textures



31

HOW TO CHOOSE A VIDEO CARD

The VGA Card price will change on

1 VGA Card Processor

2 VGA Card Ram capacity

3 Ram type of VGA Card

When you are choosing one Video Card you have to consider

The best way to see what video card to buy is to consider how youre using your computer now

There are several categories

Server

If youre using your computer as a mail server FTP server print server or even a game server you

definitely do not need a high-end video card What you need is a simple no-frills low-end video

card

Simple Applications

Say youre using the PC for simple applications only for example word processing email or web

surfing Again you do not need the best video card out there A cheap and decent one will do the

trick

Complex Applications

If you need to perform more complex tasks like 3D computer aided design or video editing it will

make more sense to go for a heavy duty card Screen resolution and image quality tend to be

important factors for this type of work Look for a video card whose processor which supports a high

screen resolution with ample graphics memory

General Games

If youll only play simple games like Minesweeper Reverse or Backgammon then my advice is to

save your money and just get a simple video card No need for the latest 3D graphics gizmo



31

SOUND CARD

The sound card is an essential

component in the PC since it translates

digital signals into analog audio for your

listening pleasure Well thats true if you

want to play games or run multimedia

applications in your PC Otherwise it

may not be necessary especially in business environments

Sound card ports



31

A computer sound card is used by a computer for music sounds during applications and

entertainment (TV movies and games) A typical sound card usually has four ports The largest port

is the MidiGame port which is used for connecting a joystick or gaming controller to The other

three ports look similar and are generally green pink and blue

Underneath each port will be a small engraving of what each port does The pink port is for a

microphone which can record sound to the computer The green port is line out and this is where

the speakers are connected to produce sound from the computer The blue port is line in and this is

for connecting a CD-player or cassette tape to the computer

Remember a sound card by itself is not enough to hear sound You will still need to purchase some

computer speakers or a headphone set If you want to make use of the microphone feature then

you will need to buy a computer microphone and you should then be able to record sound to your

computer

How to Choose a Sound Card

When you are choosing one Sound Card you have to consider

First thing to consider here is your intended usage of the sound card If all you want is basic

sound support and not spectacular 3D surround sound Id say go buy a cheap simple card

or even rely on your motherboards on-board sound

If you want great surround sound and better speaker connectivity options then youll want to

consider a dedicated sound card



31

MODEM CARD

A device that translates data from your PC into a form

that can be sent to other computers over regular phone

lines The modem also receives signals from other

computers and converts it into something your

computer can understand A modem is the device most

home computers use to connect to the Internet

A Modem converts digital information into sound so that

it may be transmitted over telephone lines When the modem hears this sound on the other end it

converts the sound back into digital information

There are two types of modems

INTERNAL

EXTERNAL

External modems are slightly more expensive than internal modems and are housed in an external

box or enclosure External modems require a socket on the computer or port (usually the serial port

on the back of your computer) The serial port is also called a COM port com for communications

Network Card

A network interface card more commonly referred to as

a NIC is a device that allows computers to be joined

together in a LAN or local area network Networked

computers communicate with each other using a given

protocol or agreed-upon language for transmitting data

packets between the different machines known as nodes

The network interface card acts as the liaison for the

machine to both send and receive data on the LAN

The most common language or protocol for LANs is



31

Ethernet sometimes referred to as IEEE 8023 A lesser-used protocol is Token Ring When

building a LAN a network interface card must be installed in each computer on the network and all

NICs in the network must be of the same architecture For example all must either be Ethernet

cards Token Ring cards or an alternate technology

An Ethernet network interface card is installed in an available slot inside the computer The NIC

assigns a unique address called a MAC (media access control) to the machine The MACs on the

network are used to direct traffic between the computers The back plate of the network interface

card features a port that looks similar to a phone jack but is slightly larger This port accommodates

an Ethernet cable which resembles a thicker version of a standard telephone line Ethernet cable

must run from each network interface card to a central hub or switch The hub or switch acts like a

relay passing information between computers using the MAC addresses and allowing resources

like printers and scanners to be shared along with data

A network interface card does not have to be hard wired with physical cable Wireless Ethernet

cards are installed like their wired counterparts but rather than a port for an Ethernet cable the card

features a small antenna The card communicates with the central wireless switch or hub via radio

waves Wireless LANs may have some restrictions depending on the material the building is made

from For example lead in walls can block signals between the network interface card and hub or

switch

When buying components for a LAN make sure the NICs and hub or switch have the same

capabilities The entire network must be either wired or wireless so a wireless network interface

card cannot talk to a wired switch or hub In addition newer versions of hardware will likely support

more features andor greater speeds than older versions Make sure your central switch or hub can

utilize the highest capabilities of the network interface card under consideration



31

CHAPTER SEVEN

PERIPHERALS

Chapter 71 Keyboard and Mouse

Chapter 72 Floppy Drive and CD-Rom

Chapter 73 Monitor

These two input devices are obviously needed otherwise you cant interact with the computer

system These components are fairly standard stuff and can be purchased at pretty cheap prices

KEYBOARDS

The keyboard is the main input device for

most computers There are many sets of

keys on a typical ldquowindowsrdquo keyboard On

the left side of the keyboard are regular

alphanumeric and punctuation keys similar

to those on a typewriter These are used to

input textual information to the PC

A numeric keypad on the right is similar to

that of an adding machine or calculator Keys that are used for cursor control and navigation are

located in the middle Keys that are used for special functions are located along the top of the

keyboard and along the bottom section of the alphanumeric keys

Keyboards are mainly divided into two types

1 Multimedia keyboard

2 Ordinary Keyboard



31

Areas of keyboard

The keyboard has five areas

1 The alphabetical keys or the typing keys A ndash Z

2 The function keys F1 ndash F12

3 The computer keys (Alt Ctrl Esc Window print Sc etc)

4 The dedicated cursor keys ( page up page down home end insert

etc)

5 Numeric keypad (containing Arabic numerals and cursor keys)

MOUSE

Mouse is another input device used in computer

Mouse is a device that controls the movement of the

cursor or pointer on a display screen

A mouse is a small object you can roll along a hard

flat surface Its name is derived from its shape which

looks a bit like a mouse its connecting wire that one

can imagine to be the mouses tail and the fact that

one must make it scurry along a surface As you

move the mouse the pointer on the display screen moves in the same direction

Mouse contain at least one button and sometimes as many as three which have different functions

depending on what program is running Some newer mouse also includes a scroll wheel for

scrolling through long documents



31

FLOPPY DRIVE

A 35rdquo square holding a flexible magnetic disc that holds

information or data You need a floppy drive to read the

floppy A floppy disk can hold only 144 megabytes but

it is portable and allows you to make copies of your

files

CD-ROM

A CD-ROM drive used to be an optional extra in

computers - it is no longer so Most software packages

come in CD format so you must have a CD-ROM drive to

read them Typically CD-ROM drives today need to be at

least 24X speed to keep up with the newer software

applications out there

A CD drive connects to the computer motherboard through two types of cables The older and more

common connection is through the IDE Ribbon cable Recently SATA (Serial ATA) drives have

been produced and will gradually become more common The benefits of having SATA cables is

that they are smaller and the transfer rate is higher

Floppy drives were the main source of data transfer and files were small enough to fit on them

However today even CD drives are getting out of date and are fast being replaced by the DVD

ROM and DVD RW Drives



31

CD-RW

CD writer is used to write CD It can also used

as a CD drive CD can be able to write with

different formats By using CD writer we can

able to write with different speeds There are

different types of writers are available in the

market with different writing speeds

On a CD drive there is usually some numbers

with a x symbol after it This stands for times for

example common speeds are 4x 8x 16x 18x

24x 32x 40x and 52x CD RW drives have

speeds like 24x-10x-40x or 52x-32x-52x

How to Choose a CD-RW

When you are choosing one CD-RW you have to consider

Drive Speed

For CD writers you should generally look for a 40X record speed or faster If you buy anything that

is slower it will definitely waste a lot of time when youre burning CDs

MONITOR

Monitor is the display device Many times per

second the video card sends signals out to the

monitor The information video card sends controls

which dots are lit up and how bright they are

which determines the picture you see



31

Color monitors can display anywhere from 16 to over 1 million different colors Color monitors are

sometimes called RGB monitors because they accept three separate signals -- red green and

blue

The resolution of a monitor indicates how densely packed the pixels are In general the more pixels

(often expressed in dots per inch) the sharper the image Most modern monitors can display 1024

by 768 pixels the SVGA standard Some high-end models can display 1280 by 1024 or even 1600

by 1200

How to Choose a Monitor

If youre a graphics professional you may prefer a CRT monitor because they are said to show

more realistic colors However the latest high-end LCDs can also give equal color quality

If you with text most of the time a LCD is a good choice because the various pixels that you find on

a LCD will have nicely defined edges This gives sharp and focus letters on the screen



31

CHAPTER EIGHT

CASE AND POWER SUPPLY

Chapter 81 Case

Chapter 82 How to Choose a Case

Chapter 83 Power Supply

COMPUTER CASE

The computer case is your computers housing You need this to store your components the largest

of which is your motherboard

TYPES OF CASE

MINI TOWER

Advantages Excellent size which can be placed on top

of below of a computer desk

Disadvantages While this case does offer

upgradeability it can be filled up much faster then the

Mid-Sized tower



31

Recommendations Great PC for end-users and small businesses

MID-SIZE TOWER

Advantages Excellent case which can fit below and on top of your computer desk Plenty of

expandability for new devices for businesses end-users and advanced users One of the most

used computer cases found today

Disadvantages None



31

FULL-SIZE TOWER

Advantages Excellent computer for upgradeability

Excellent case for a server machine

Disadvantages Cost is going to be a lot more then

a standard case Generally A large case which

cannot be placed on top or beneath a desk

Recommendations This case is an excellent

choice for all users and businesses

DESKTOP

Advantages Excellent desk computer

Great use of desk space when monitor is

placed on top of the computer

Disadvantages With some types of

desktop cases can be very difficult to

upgrade Does not really work on the floor

Recommendations We recommend that this type of case be purchased by advanced users or

users who plan to have a stand alone machine as a server



31

HOW TO CHOOSE A CASE

Choosing a computer case can be difficult if you dont know what you are looking for The range of

computer cases is huge and bigger then itrsquos ever been So how do you find one that suits you This

guide will explain how to choose a computer case that suits your needs

Whats your budget

The first step in choosing a computer case is working out how much you are willing to spend on a

case If you would like to save money then dont spend a fortune on your case

However if you do buy a decent case then it will be unnecessary to upgrade for a long time I would

say that your case should cost about 5-10 of your entire budget So if you are willing to spend

N100000 on your computer then spend from N5000 - N10000 on your case

Whats your needs

The second step in choosing a computer case is making sure that it has enough room to house all

your components If you have two CD drives then get a case that has room for the three drives Put

one at the top and one at the bottom leaving space in between for cooling Do the same for your

hard drives and floppy drives Also make sure that your motherboard can fit inside the case Some

cases are smaller then others and some motherboards are bigger then others so make sure your

motherboard will fit

Next make sure that there is at least one fan built into the case I would recommend two fans at

least and if you are really worried about your equipment over-heating then get another fan

I have a friend who is very worried about over-heating He has about 6 fans inside his computer and

when he turns it on it sounds like an airplane taking off and all the lights in his house go dim

So if you are prepared for a little more noise then its a good idea to get an extra fan to cool your

equipment down However dont get paranoid about fans one or two should be fine and unless

there is no circulation your hardware should survive



31

Computer Case Style

The last thing to do in choosing a computer case is to choose what you want the case to look like

Do you want a black or white case a fancy or plain case The range of computer cases on the

market is huge so select one that you like If you would prefer a cheap computer case then choose

a plain one Many computer cases come with extras at the front like USB and ports for a headset

These can be very useful and are worth it for the extra money

When you are choosing one Case you have to consider

External Space

The first factor to consider is how much space your PC case is going to take up Are you placing it

on a tight crammed desk Or on a large desk If you have the space tower PC cases are a good

choice If youre short of space you may wish to consider smaller mini PC cases which are getting

more popular these days

Internal Space

Another factor to consider is how many components you wish to fit in your PC case If youre a

computer nut like me youll want to fit in a good motherboard CPU a couple of hard drives video

card LAN card cooling fans a CD-ROM drive and a DVD writer Thats a lot of components to be

cramming into a PC case Again a good choice would be a tower PC case However with so many

components you have to watch out for overheating problems - make sure you deck out the system

with a couple of good fans

Motherboard Support

Check that your motherboard can fit into the case Some cases are flexible enough to support AT

ATX and Baby-AT boards but others only support one of these sizes Even then you need to be

careful - some cheaper ATX cases dont really fit ATX motherboards I remember buying a

wonderful ATX motherboard and it couldnt fit into my PC case Imagine my frustration



31

POWER SUPPLY

Most PC cases come with power supplies With more and more components being fitted into a PC

you will certainly need enough juice to power them

Cooling

If youre a over clocker or have many system components youll need to ensure youve got enough

fans in that case to cool the system Good PC cases allow multiple (4 or more) cooling fans to be

installed ensuring good ventilation

Looks

Just a few years back PC cases were boring white boxes These days you can find a plethora of

colorful PC cases - if youre concerned about your PCs look Many PC enthusiasts I know go for

good looking PC cases that come in a variety of colors - red black green blue and what not

Power Supply

A computer power supply is a compulsory unit to a computer Without the power supply a computer

is useless as it is just a case full of metal and plastic This page will explain the different power

cables and connectors and how they work inside your computer

A power cable connects from the power point to

the power supply where it supplys the

motherboard and other components with power

Often there is a power switch on the back which

can be switched off to stop the power current If

this is not switched off and even though the

computer is off power will still be drawn out of

the power point (very small amount)

The most common power supply that we have in



31

our computers today are the ATX Power Supply The AT Power Supply was found in many

computers a few years ago but this has become less common

The graphic below shows each power cable and its name

The computer power supply is placed inside the computer case generally near the top of the case It

is sometimes necessary to buy a mini power supply for some cases are so small that they need

one Most computer cases when bought come with a power supply that is suited to its case There

are usually power ports on the motherboard for the fans in the case but if not it is possible to buy an

adapter that will convert power from the 4-pin power cable to a fan power cable



CHAPTER ONE

INTRODUCTION

Your PC (Personal Computer) is a system consisting of lots of components Some of those

components like Windows XP Windows Vista Windows 7 Windows 8 and all your other

programs are software That is why we say Software are programs that enhances the functionality

of your computer system While the electrical mechanical and physical component parts of the

computer that you can actually see and touch are hardware

HARDWARE

The hardware are the electrical mechanical and physical component parts of computer itself

including the Central Processing Unit (CPU) and related microchips and micro-circuitry keyboards

monitors case and drives (hard CD DVD floppy optical tape etc)

Other extra parts called peripheral components or devices include mouse printers modems

scanners digital cameras and cards (sound colour video) etc

The devices which are Necessary to assemble a computer

Motherboard

Processor

Memory

Hard Drive

Video Card (if motherboard didnt come with it)

Sound Card (if motherboard didnt come with it)

Modem andor Network Card

Floppy Drive

CD-Rom

Keyboard and Mouse

Case And Power Supply

Monitor



CHAPTER TWO

PROCESSOR













itself




Pentium I-IV

Celeron

Athlon

Duron

Cyrix C3

Itanium (64 bit)

Opteron (64 bit)

HOW TO CHOOSE A CPU







CHAPTER THREE

MOTHERBOARD



MOTHERBOARD













sound cards


drives






















support










model of CPU





CHOOSE YOUR CHIPSET















OTHER FEATURES





CHAPTER FOUR

RAM













TYPES OF RAM

1 SDRAM

2 DDR

3 DDR2

4 DDR3



31

1 SDRAM









proper performance





PC2100 PC2700 PC3200 (DDR400) and











31





speed











DDR memory socket


enabled chipset



31

CHAPTER FIVE

HARD DISK









files





(unlike RAM)









31








ATA and SCSI










DISK SPACE VS PRICE




DRIVE SPEED



use



31

CHAPTER SIX





VIDEO CARD

VGA Card is the one


to the monitor


placed in the






PCI-Express Slot







31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











CHAPTER TWO

PROCESSOR













itself




Pentium I-IV

Celeron

Athlon

Duron

Cyrix C3

Itanium (64 bit)

Opteron (64 bit)

HOW TO CHOOSE A CPU







CHAPTER THREE

MOTHERBOARD



MOTHERBOARD













sound cards


drives






















support










model of CPU





CHOOSE YOUR CHIPSET















OTHER FEATURES





CHAPTER FOUR

RAM













TYPES OF RAM

1 SDRAM

2 DDR

3 DDR2

4 DDR3



31

1 SDRAM









proper performance





PC2100 PC2700 PC3200 (DDR400) and











31





speed











DDR memory socket


enabled chipset



31

CHAPTER FIVE

HARD DISK









files





(unlike RAM)









31








ATA and SCSI










DISK SPACE VS PRICE




DRIVE SPEED



use



31

CHAPTER SIX





VIDEO CARD

VGA Card is the one


to the monitor


placed in the






PCI-Express Slot







31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31












Pentium I-IV

Celeron

Athlon

Duron

Cyrix C3

Itanium (64 bit)

Opteron (64 bit)

HOW TO CHOOSE A CPU







CHAPTER THREE

MOTHERBOARD



MOTHERBOARD













sound cards


drives






















support










model of CPU





CHOOSE YOUR CHIPSET















OTHER FEATURES





CHAPTER FOUR

RAM













TYPES OF RAM

1 SDRAM

2 DDR

3 DDR2

4 DDR3



31

1 SDRAM









proper performance





PC2100 PC2700 PC3200 (DDR400) and











31





speed











DDR memory socket


enabled chipset



31

CHAPTER FIVE

HARD DISK









files





(unlike RAM)









31








ATA and SCSI










DISK SPACE VS PRICE




DRIVE SPEED



use



31

CHAPTER SIX





VIDEO CARD

VGA Card is the one


to the monitor


placed in the






PCI-Express Slot







31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











CHAPTER THREE

MOTHERBOARD



MOTHERBOARD













sound cards


drives






















support










model of CPU





CHOOSE YOUR CHIPSET















OTHER FEATURES





CHAPTER FOUR

RAM













TYPES OF RAM

1 SDRAM

2 DDR

3 DDR2

4 DDR3



31

1 SDRAM









proper performance





PC2100 PC2700 PC3200 (DDR400) and











31





speed











DDR memory socket


enabled chipset



31

CHAPTER FIVE

HARD DISK









files





(unlike RAM)









31








ATA and SCSI










DISK SPACE VS PRICE




DRIVE SPEED



use



31

CHAPTER SIX





VIDEO CARD

VGA Card is the one


to the monitor


placed in the






PCI-Express Slot







31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31
















sound cards


drives






















support










model of CPU





CHOOSE YOUR CHIPSET















OTHER FEATURES





CHAPTER FOUR

RAM













TYPES OF RAM

1 SDRAM

2 DDR

3 DDR2

4 DDR3



31

1 SDRAM









proper performance





PC2100 PC2700 PC3200 (DDR400) and











31





speed











DDR memory socket


enabled chipset



31

CHAPTER FIVE

HARD DISK









files





(unlike RAM)









31








ATA and SCSI










DISK SPACE VS PRICE




DRIVE SPEED



use



31

CHAPTER SIX





VIDEO CARD

VGA Card is the one


to the monitor


placed in the






PCI-Express Slot







31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31























support










model of CPU





CHOOSE YOUR CHIPSET















OTHER FEATURES





CHAPTER FOUR

RAM













TYPES OF RAM

1 SDRAM

2 DDR

3 DDR2

4 DDR3



31

1 SDRAM









proper performance





PC2100 PC2700 PC3200 (DDR400) and











31





speed











DDR memory socket


enabled chipset



31

CHAPTER FIVE

HARD DISK









files





(unlike RAM)









31








ATA and SCSI










DISK SPACE VS PRICE




DRIVE SPEED



use



31

CHAPTER SIX





VIDEO CARD

VGA Card is the one


to the monitor


placed in the






PCI-Express Slot







31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











CHOOSE YOUR CHIPSET















OTHER FEATURES





CHAPTER FOUR

RAM













TYPES OF RAM

1 SDRAM

2 DDR

3 DDR2

4 DDR3



31

1 SDRAM









proper performance





PC2100 PC2700 PC3200 (DDR400) and











31





speed











DDR memory socket


enabled chipset



31

CHAPTER FIVE

HARD DISK









files





(unlike RAM)









31








ATA and SCSI










DISK SPACE VS PRICE




DRIVE SPEED



use



31

CHAPTER SIX





VIDEO CARD

VGA Card is the one


to the monitor


placed in the






PCI-Express Slot







31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











CHAPTER FOUR

RAM













TYPES OF RAM

1 SDRAM

2 DDR

3 DDR2

4 DDR3



31

1 SDRAM









proper performance





PC2100 PC2700 PC3200 (DDR400) and











31





speed











DDR memory socket


enabled chipset



31

CHAPTER FIVE

HARD DISK









files





(unlike RAM)









31








ATA and SCSI










DISK SPACE VS PRICE




DRIVE SPEED



use



31

CHAPTER SIX





VIDEO CARD

VGA Card is the one


to the monitor


placed in the






PCI-Express Slot







31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31

1 SDRAM









proper performance





PC2100 PC2700 PC3200 (DDR400) and











31





speed











DDR memory socket


enabled chipset



31

CHAPTER FIVE

HARD DISK









files





(unlike RAM)









31








ATA and SCSI










DISK SPACE VS PRICE




DRIVE SPEED



use



31

CHAPTER SIX





VIDEO CARD

VGA Card is the one


to the monitor


placed in the






PCI-Express Slot







31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31





speed











DDR memory socket


enabled chipset



31

CHAPTER FIVE

HARD DISK









files





(unlike RAM)









31








ATA and SCSI










DISK SPACE VS PRICE




DRIVE SPEED



use



31

CHAPTER SIX





VIDEO CARD

VGA Card is the one


to the monitor


placed in the






PCI-Express Slot







31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31

CHAPTER FIVE

HARD DISK









files





(unlike RAM)









31








ATA and SCSI










DISK SPACE VS PRICE




DRIVE SPEED



use



31

CHAPTER SIX





VIDEO CARD

VGA Card is the one


to the monitor


placed in the






PCI-Express Slot







31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31








ATA and SCSI










DISK SPACE VS PRICE




DRIVE SPEED



use



31

CHAPTER SIX





VIDEO CARD

VGA Card is the one


to the monitor


placed in the






PCI-Express Slot







31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31

CHAPTER SIX





VIDEO CARD

VGA Card is the one


to the monitor


placed in the






PCI-Express Slot







31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31









Server



card

Simple Applications



trick






General Games





31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31

SOUND CARD








Sound card ports



31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31












computer










31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31

MODEM CARD











INTERNAL

EXTERNAL




Network Card












31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31


















switch








31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31

CHAPTER SEVEN

PERIPHERALS



Chapter 73 Monitor



KEYBOARDS














2 Ordinary Keyboard



31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31

Areas of keyboard






etc)


MOUSE















31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31

FLOPPY DRIVE





files

CD-ROM
















31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31

CD-RW














Drive Speed



MONITOR








31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31



blue




by 1200








31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31

CHAPTER EIGHT


Chapter 81 Case



COMPUTER CASE



TYPES OF CASE

MINI TOWER





Mid-Sized tower



31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31


MID-SIZE TOWER




Disadvantages None



31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31

FULL-SIZE TOWER








DESKTOP











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31





Whats your budget






Whats your needs
















31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31

Computer Case Style







External Space





Internal Space







Motherboard Support







31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31

POWER SUPPLY



Cooling




Looks




Power Supply















31











31









Computer components

Education