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What is computer ?

Types of computer

Components of computer

Hardware

Software

Computer memory

Files and folders

Introduction about Operating system

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ATM

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"(Electronic) /(Device), (\)\\ |

Computer , ' ' , ,

C = Commonly O = OrientedM = MachineP = ProperlyU = Used forT = TrainingE = EducationR = Research

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LCD( )

LED ( )

( ) ( ) ( ) ( )

:- CPU | , | CPU , , , | |

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) (CPU -Central Processing Unit, Processor):

, | | , CU- , ALU- , MU- | - , -, -, - -

) (MU) : | - BYTES | | |

0.11 bit4 bits1 nibble8 bits1 byte1 byte1 character1024 bytes1 Kilobyte (KB)1024 KB1 Megabyte (MB)1024 MB1 Gigabyte (GB)1024 GB1 Terabyte (TB)

( RAM-Random Access Memory):

RAM , | CPU | 64 MB 16 GB .

( ROM-Read Only Memory) :

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| | | RAM , | CD ROM, DVD ROM ,FLOPPY DISK |

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- Report.doc

.doc - MS Word File .txt Notepad File .xls - Excel sheet File .html - Webpage File .ppt PowerPoint File

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( ) ( ) (DOS)

XP, WINDOWS 7, WINDOW 8

WINDOWS 7 23 2009

xp

xp 7 xp , , xp , , 7 ,

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