Generations of computer

1. Generations
of
Computer

2. 5 Generations of Computer
• First generation of computer
• Second generation of computer
• Third generation of computer
• Fourth generation of computer
• Fifth generation of computer

3. First generation of computer
The computer of this generation used
electronic devices known as Vacuum tubes
and punched cards to record data.
Period : 1940 - 1956
Size: Very Huge (Size of 3 rooms)
Devices Used: Vacuum Tubes
Examples: Mark1, UNIVAC-1, EDVAC, EDSAC

4. Second generation of computer
These computers used transistors in place
of Vacuum tubes.
Period: 1957-1963
Size: Smaller than first generation of
computers
Devices Used: Transistors

5. Third generation of computer
Integrated circuits are made by many
Transistors.
Period: 1964-1971
Size: Much Smaller than second generation
of computers
Devices Used: Integrated Circuits

6. Fourth generation of computer
A large number of integrated circuits were
put together in a material called silicon
chips. Silicon chips were reliable and cheap.
Period: After 1972 to present
Size: Very Small in Size
Devices Used: Silicon Chips

7. Fifth generation of computer
These computers are based on artificial
intelligence. Parallel processing and
superconductors are used.
Period: Present and Beyond
Size: Very Small
Devices Used: Superconductors
Examples: Robots