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1. IJAZ AHMAD
LL.B (HONS)

2. COMPUTER SCIENCE

3. Generation of Computer
1st
Generation
2nd
Generation
3rd
Generation

4. First Generation
 The Period of first generation was 1942
to1954.
 First generation of computer started with
using vacuum tubes as the basic
components for memory and circuitry for
CPU( Central processing unit)

5. 2nd Generation
 The period of 2nd generation was 1952 to
1964
 This generation using the transistor were
cheaper, consumed less power, more
compact in size, more reliable and faster
than the first generation machines made of
vacuum tube.

6. 3nd Generation
 The period of 3rd generation was 1964 to
1972
 The 3rd generation computer is mark by the
use of integrated circuits in place of
transistors
 The development made computer smaller
in size, reliable and efficient.
 High level languages were used during
generation.

7. 4th Generation
 The period of fourth generation was 1972
to 1990.
 The fourth generation computer is mark by
the use of very large scale integrated
circuits. VLSI circuits.
 All the higher languages like C and C++,
DBASE etc were used in this generation.

8. 5th Generation
 The period of fifth generation was 1990 till
date.
 In the fifth generation, VLSI technology
became ULSI (ultra large scale integration)
technology, resulting in the production of
microprocessor chips having ten millions
electronic components.

9. END OF PRESENTATION

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