Generation Of Computer

1. by,
Anushri S. Patil.
Generation of computer
Towards the world of revolution…

2. Towards the world of revolution…

3. COMPUTER
Common
Operating
Machine
Particularly
Used for
Technical
Education &
Research.

4. I Generation : 1945-55
II Generation : 1955-65
III Generation : 1965-75
IV Generation : 1975-89
V Generation : 1989 to present
Generations & its Lifespan

5. Generation I :
 1940 -1955
 Vacuum Tubes
 Lee De Forest
 Used vacuum tubes as the basic
components for memory and
circuitry for CPU

6. Batch Processing Operating System
No compiler or no Assembler to
process instruction of 1GL
Machine code
Input through Front panel Switches
Direct to CPU

7. UNIVAC -1951
(Universal Automatic Computer)
 First fully electronic digital
computer built in the U.S.
Created at the University
of Pennsylvani
UNIVAC weighed 30 tons
contained 18,000 vacuum
tubes

8. Advantages
 Execution is very Fast ,
Efficient.
 Calculate data in
millisecond
 Vacuum tube technology
Disadvantages
 Difficult to fix the code
 Large in size
 Large Energy
 Air conditioning required
 Not reliable
 Non portable
 Machin language
 Non versatile
 Very Faulty

9. Generation II :
1955-1965
Transistors
Transistors used to regulate
the flow of an electrical current &
to switch electricity on & off .

10. At Bell laboratories
Scientists include
1.John Barden,
2.William Brattain &
3.William Shockley.

11. II generation computers
IBM 7094 series IBM 1400 series

12. Advantages
 Smaller size
 Reliable
 Commercial use
 Accuracy improved
 Including peripherals
Disadvantages
 Costly
 Maintenance required
 Cooling system required

13. Generation III :
1965-1975
Integrated circuits
Jack Kilby
single IC chip may contain
thousands of transistors.

14. III generation computers
IBM 370,
IBM System/360,
UNIVAC 1108 &
UNIVAC AC 9000

15. Advantages
 Smaller size
 Reliable
 Less expensive
 Good storage
 Input via mouse, keyboard
Disadvantages
 Air conditioning
 Technology required

16. Generation IV :
1975-1989
Microprocessor
Ted Hoff
Microprocessor contains
thousands of ICs.

17. IV generation computers
Apple Macintosh IBM PC

18. Advantages
 Smallest size
 Reliable
 Cheapest
 Fast processing
 VLSI Technology
 Mouse & handheld devices
Disadvantages
 Highly skilled staff was
required for manufacturing

19. Generation V :
1989 to until
Artificial intelligence
ULSI technology
Use of parallel processing
& superconductors.

20. Goal
To develop devices that respond to natural
language input and are capable of learning & self-
organization.

21. IBM Watson computer

22. Source of Knowledge:
http://www.webopedia.com/DidYouKnow/Hardware_
Software/FiveGenerations.asp
http://www.columbia.edu/cu/computinghistory/generat
ions.html
History of Computer Development & Generation of
Computer - WikiEducator.html