A computer is an electronic machine that converts the raw data into useful information. In short, we can say that a computer is a data processing machine.
The computer system works in the principle of IPO:-
1. INPUT (I):-the computer accepts data and instructions from the user. The input function is performed by input devices. Such as keyboard, mouse, microphone etc.
2. PROCESSING (P):- the computer processes the data as per the given instruction. It is performed by the central processing unit (CPU).
3. OUTPUT (O):- the computer produces the result of processing. It is done through output devices such as monitor, speakers, printer, etc.
4. Storage:- the computer stores the data and information for temporary purpose as well as for future use. It is performed by storage devices such as RAM, Hard Disk, and Optical Disk etc.
Fig: - Basic Operation of Computer System.
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