33872881 Basic Computer Repairing (Meanchey University => Theang Yinh)

8/3/2019 33872881 Basic Computer Repairing (Meanchey University => Theang Yinh)

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What is Computer?ComputerComputer is Electronic Machine that is used to:is Electronic Machine that is used to:

-- Execute ProcessingExecute Processing == RbtibtkarRbtibtkarProcessingProcessing

-- Store DataStore Data == rkSaTukrkSaTukDataData

-- Organize DataOrganize Data ==RKb;RKgRKb;RKg DataData

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-- == sV rk BtmansV rk Btman-- Do CalculationsDo Calculations == eFVIkarKNnaeFVIkarKNna

-- Translate the ProcessingTranslate the Processing == bkERb dMenIrkarbkERb dMenIrkar

-- Control other machinesControl other machines = RtYtBiniteTAelIma:sIunepSg= RtYtBiniteTAelIma:sIunepSg

-- And more usagesAnd more usages == nig rebobeRbIR)as;epSgeTotnig rebobeRbIR)as;epSgeTot


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Computers Environmentomputers Environment

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Computers Family1- Micro-Computer is a small computer that contains the Microprocessor ChipCaRbePTkMuBTrEdlpkMicroprocessor chip

- Desktop Computer \ Personal Computer

- Laptop Computer \ Notebook Computer

- Pocket PC \Hand-Held PC \PDA (Personal Digital Assistant)

2- Mini-Computer is a computer that is smaller and slower than a Mainframe

M I W

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ut arger an aster t an a cro- omputer= aRbePTkuBTr ltUcehyyt aMainframe b:uEnelOnCag Micro-Computer

3- Mainframe Computer is a large powerful computer, usually the center ofnetwork and shared by many users around the world

CakMuBUTrEdlelOnCag CaFmtavaCamCmNlnetwork

eRbIsMrab;EckcayeTAeGayGkeRbIR)as;TUTaMgBiPBelak4- Super Computer is a powerful computer with a large amount of memory and

a very fast CPU CakMuBUTrEdlelOnCagbMputCamYykarcgcaMnigelOnya:gelOnbMput


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Micro and Mini Computericro and Mini ComputerDesktop Computer / PC Laptop Computer / NC

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Mini-Computer

-Pocket PC

-Hand-Held PC

-PDA


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Mainframe and Superainframe and SuperComputeromputer

Mainframe Computer

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Super Computer

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Computer SoftwareSoftware is the set of Instructions that directs the hardware

to accomplish a task, it can be called Program.Ca set ofInstructions EdlbBaaeTAdMenIrkarmYyeGayeCaKCy CamYyhardware1- Operating System Software

Microsoft (MS-DOS, Wins 9X, Wins NT, Wins ME, Wins2K, Windows XP, Windows Vista, Windows 7)

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, - - Apple (Mac OS, Mac OS X)

2- Application Software Microsoft Office 2007 Enterprise

TuneUp Utilities 2009 etc

3- Firmware Student Registration Market Management etc.


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Computer HardwareHardware is the physical components of computer which we can touch

and hold it CasmasPaKrUbragrbs;kMuBTrEdleyIgGaccucnigkan;)an

Mainboard \Motherboard (Built-In, Built-Out)

Monitor (CRT, LCD)

Keyboard

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- -- Numeric Keypad - Cursor Movement Keypad

- Main Keypad

Memory Chips (RAM: SDRAM - DDRRAM)

Hard Drive (HDD, FDD, Zip, Memory Card , USB Flashetc)

Mouse (Rolling-Ball, Optical, Wireless) Expansion Cards (Sound Card, VGA Cardetc)


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Hardware _ Input DevicesInput Devices include

- Keyboard

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- Joy Stick

- Scanner

- Touch Screen

- Light Pen

- Bar Code Reader

- Microphone System etc


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Keyboard Device Touch Screen

Hardwareardware _ Inputnput Devicesevices

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Mouse Device

Scanner Device


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Hardwareardware _ Inputnput Devicesevices

Light Pen

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Joy Stick

crop onear o e ea er


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Output Devices include :

- Monitor

-

Hardwareardware _ OutpututputDevicesevices

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- Printer

- Plotter

- LCD Projector

- COM (Computer Output Microfilm) etc


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PrinterPlotter

Hardwareardware _ OutpututputDevicesevices

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Widescreen LCDLCD Projector

Hardwareardware _OutpututputDevicesevices

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Computer Processing

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System board / Circuit board:- CMOS (Complementary Metal Oxide Semiconductor)- BIOS (Basic Input / Output System)

Temporary Memory: RAM (Random Access Memory)

Permanent Storage:- Floppy Disk - USB Flash Memory

Hardware Inside System Unit

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- Hard Disk - Zip Disk

- CD-ROM - Mobile Phone etc.

Data Cable:- FDD (Floppy Disk Drive)- IDE (Integrated Drive Electronics)

- SATA (Serial Advanced Technology Attachment)- SCSI (Small Computer System Interface)

Power Supply: AT and ATX


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Hardware Inside System UnitPower Supply

CD_ROM drive

Floppy Disk Drive

CPU Fan

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Hard Disk Drive

Data Cables

Expansion Cards

Circuit Board


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Computers PortsPorts is the physical connectors that allow a cable from a peripheral device

to be attached Ca physical EdlGnuBaateGaybrikarbs;kMuBTrEdlGacattach CamYydevice epSg

Parallel Port / Printer Port = 25 pins

PS/2 Port = 6 pins Serial Port = 9 pins Game Port / Midi Port = 15 pins

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. . Network Port / LAN Port = 8 pins (RJ45) Modem Port = 4 pins (RJ48) Sound Port / Audio Port (Input-Output-Microphone)

VGA Port ( Video Graphic Adapter) = 15 pins IDE Port (Integrated Drive Electronics) = 39 pins

FDD Port (Floppy Disk Drive) = 34 pins ATX Port = 20 pins or 24 pins CPU Sockets (Central Processing Unit)


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Computers PortsPower In / Plug In

PS/2 Keyboard

Power Supply Fan

PS/2 Mouse

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USB Ports

Serial Port

Parallel Port

LAN Port / Network Port

Game Port / MIDI Port

VGA Port

Audio Port / Sound Port


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Computersomputers Portsorts

Power in

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Power Supply FanPS/2 Port


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Computersomputers PortsortsUSB Ports Case Fan

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Ser

ialPorts

ParallelPorts


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LAN Port

Audio Ports

Game Port

Computersomputers Portsorts

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VGA Port


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Computers PortsUSB Ports

Parallel Port

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Serial PortPS/2 Ports


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Computers SlotsSlot is the long, thin, narrow(

cegt) opening hole which stands on the

system board1- RAM Slot (Random Access Memory)2- Expansion Slot is the connector inside a computer which an

expansion card can be plugged(dMenIrkarqab;rhs)- PCI Slot (Peripheral Component Interconnect) uses to install

expansion cards as:etwork Card - V Card - USB Card etc

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odem Card - CI Card- Sound Card - VGA Card

- AGP Slot (Accelerated Graphics Port) uses with VGA Card only- ISA Slot (Industry Standard Architecture) uses to install the

oldest version of expansion cards


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Expansions SlotsISA Slot

PCI Slot

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AGP Slot


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Modem Card

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Network Interfaceetwork Interface Cardard

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VGA Card / Graphic CardGA Card / Graphic Card

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Soundound Card / Audio Cardard / Audio Card

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Internal TVnternal TV Cardard

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TVV--BOX DeviceOX Device

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Thank You !

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33872881 Basic Computer Repairing (Meanchey University => Theang Yinh)