generation

1st Generation: 1940-56 : Vacuum tubes

• Big in size
• Consumed more power
• Malfunction due to overheat
• Machine Language was used

ENIAC,EDVAC,UNIVAC 1 ENIAC weighed about 27 tons,size 8 feet × 100 feet × 3 feet and consumed around 150 watts of power

2nd Generation: 1956-64 : Transistors

• Smaller compared to First Generation
• Generated Less Heat
• Consumed less power compared to first generation
• Punched cards were used
• First operating system was developed
• Batch Processing and Multiprogramming Operating System
• Machine language as well as Assembly language was used.

IBM 1401, IBM 1620, UNIVAC 1108

3rd Gen : 1964-71 : Integrated Circuits (IC)

• Computers were smaller, faster and more reliable
• Consumed less power
• High Level Languages were used

IBM 360 series, Honeywell 6000 series

4th Gen : 1971-80 : Microprocessor Very Large Scale Integrated Circuits (VLSI)

• Smaller and Faster
• Microcomputer series such as [[IBM]] and [[APPLE]] were developed
• Portable Computers were introduced.

5th Gen : 1980- till date : Ultra Large Scale Integration (ULSI)

• Parallel Processing
• Super conductors
• Computers size was drastically reduced.
• Can recognise Images and Graphics
• Introduction of Artificial Intelligence and Expert Systems
• Able to solve high complex problems including decision making and logical reasoning

6th Gen : Future

• Parallel and Distributed computing
• Computers have become smarter, faster and smaller
• Development of robotics
• [[NLP]]
• Development of Voice Recognition Software