What are the basic organization of a computer system?

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1. Input:

It is the process of feeding data and instructions to a computer system

2. Store:

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It is the process of saving the data and instruction for the use of the system as and when required.

3. Processing:

It is the way of carrying out arithmetic(addition, subtraction, multiplication and division) or logical(comparison) operations on data in order to convert them to useful information.

4. Output:

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It is the process of presenting the final result for the user in printed or visual display format.

INPUT UNIT

Keyboard, mouse, joystick, scanner smartcard, microphone.

Primary Storage

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RAM, ROM, PROM EPROM, Flash.

OUTPUT UNIT

Display Screen, Printer, Plotter, Speaker.

Secondary Storage

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Magnetic disk, Optical disk, Solid state memory.

Indicate control flow for proper operation

5. Control:

It is the most important operation of the computer in which all four operations described above are coordinated and synchronized.

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Though the internal architecture of different computers vary from one system to another, the basic organization remains the same. The block diagram given here may instill a basic idea of a modern computer system and its working.

We shall now discuss briefly the structure and working of different sections of a digital computer as shown in the previous diagram.

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