Computer Fundamental

Charles Babbage{चार्ल्स बेबेज} {26 December 1791-18 October 1871}

What is Computer?

computer is an advance electronic devices that takes raw data as input from the user and processes these data under the control of set of instructions{called program} and gives the result {output}and saves output for the future use.It can process both numerical and npn-numerical {arithmetic nad logical} calculations.

A computer has four functions:

a.accepts data :- Input
b.processes data :- Processing
c.produces output :- Output
d.stores results :-Storage

Input {Data}

Input is the raw information entered into a computer from the input devices.It is the collection of letters ,numbers,images etc.

Process:

Process is the opertaion of data as per given instruction.It is totally internal process of the computer system

Output:

Output is trhe processed data given by computer after data processing.Output is also called as Result.We can save these results in the storage devices for the future use.

Computer System

All of the components of a computer system can be summaruzed with the simple equations

COMPUTER SYSTEM =HARDWARE+SOFTWARE+USER

*HARDWARE=Internal Devices+Peripheral Devices All physical parts of the computer(or everything that we can touch}are known as Hardware.

Software=Programs

Software gives "intelligence"to the computer.

USER=Person ,who operates computer.

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