Computer - Fourth Generation


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The period of fourth generation was from 1971-1980. Computers of fourth generation used Very Large Scale Integrated (VLSI) circuits. VLSI circuits having about 5000 transistors and other circuit elements with their associated circuits on a single chip made it possible to have microcomputers of fourth generation.

Fourth generation computers became more powerful, compact, reliable, and affordable. As a result, it gave rise to Personal Computer (PC) revolution. In this generation, time sharing, real time networks, distributed operating system were used. All the high-level languages like C, C++, DBASE etc., were used in this generation.

Fourth Generation

The main features of fourth generation are −

  • VLSI technology used
  • Very cheap
  • Portable and reliable
  • Use of PCs
  • Very small size
  • Pipeline processing
  • No AC required
  • Concept of internet was introduced
  • Great developments in the fields of networks
  • Computers became easily available

Some computers of this generation were −

  • DEC 10
  • STAR 1000
  • PDP 11
  • CRAY-1(Super Computer)
  • CRAY-X-MP(Super Computer)

computer_generations.htm

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