CLASS - 4 // SUBJECT - COMPUTER // LESSON - 1 // EVOLUTION OF COMPUTER//

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LESSON 1

EVOLUTION OF COMPUTER

1.     Give two examples of second generation computers.

Examples of second generation computers are: UNIVAC III, IBM 700.


2.     What are desktop computers used for?

Desktop computer is used for regular computing operations from a specified place such as an office.


3.     What are handheld computers?

Handheld computers are also known as Personal Digital Assistants (PDAs). They are small in comparison with laptop and can be carried anywhere.

 

4.     Write a short note on ENIAC.

The ENIAC (Electrical Numerical Integrator and computer) was developed by John W. Mauchly and J. Prosper Eckert, two American scientists. This machine used decimal digits instead of binary digits. The ENIAC was the first high-speed electronic digital computer. It was used from 1946-1955.

 

5.     Write a short note on Pascaline.

In 1642, the young French philosopher and mathematician Blaise Pascal developed an adding machine called Pascaline, which could add and subtract numbers. Pascaline used a system of gears and wheels.

 

6.     Who developed www?

www (world wide web) was developed by Tim Berners-Lee in 1991.


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