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Define computer and what computer do and how ,different devices that made a computer systems. information processing cycle, input ,output , processing and storage.// difference between data and information. why a computer so powerful. how does a computer know what to do.
input devices, keyboard, movies.
central processing unit and their role in computer.
memory and type of memory ,RAM and ROM.
Output devices printer and computer monitor or screen.
storage devices of computer floppy disk, hard disk and CD-ROM device.
computer software and their types, operating software and application software .
types of application software, word processing, electronic spreadsheet, database and presentation graphics.