Computer

Computer is a device for store data, processing data, calculate and operation according to user instruction.



Types of computer :


1. Super computer
2. Mainframe computer
3. Mini computer
4. Micro computer

History of computer :


World first calculating device is abacus. That's found in China. Abacus is counting frame. That is mechanical device use to calculate and counting.

In 19th century professor Charles Babbage designed analytical engine, that is base of modern computer.
He is inventor of first computer.
Lady Ada Lovelace is first programmer.

First electronic digital computer built by Dr. John v. Atanasoff and Clifford Berry. It was called atanasoff-berry computer (ABC).

Because of the hard work of many people we can see the present computer.

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