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Friday, June 17, 2011

What are the basic operations of a computer

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There are five basic operations of a computer as follows:
1. Inputting
It is the process of entering data and instructions into computer system. Input is performed by input devices like keyboard, mouse, scanner, digital camera and microphone etc.

2. Storing
It is the process of saving data and instructions to make them available as and when required in future. Data and programs are stored on permanent storage devices, especially on hard disk. Other permanent storage media include CD - Compact Disk, DVD - Digital Video Disk and Zip Disk etc.
3. Processing
It is the process of performing arithmetic and logical operations on data to convert them into useful information. Processing is performed by CPU- Central Processing Unit. CPU is also called Processor. It is the brain of computer.
4. Outputting
It is the process of producing useful information after processing data, for example, printed reports for user. Output is presented by output devices like monitor, printer and speakers.
5. Controlling
It is the process of directing and controlling the manner and sequence in which all above operations are performed. Control Unit will control operations and components of a computer. Control Unit is a part of the processor.

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