Friday, May 18, 2012

Types of Computer

First Generation Computers:

In 1854, George Boole, invented the logic system which is the basis for today’s digital computers. In 1937, the first electro-machine calculator was developed by Howard and Aitten. In 1946, the first computer came into existence. It was named ENIAC (Electronic Numerical Integrator and Calculator). It was developed by Dr. John Nouchly and J.P. Eckert of the University of Pennsylvania, USA. In 1951, Remington Rand Corporation of USA brought out a commercial computer named UNIVAC (Universal Automatic Computer). These computers had the shortcoming of value technology. They were slow in operations and unreliable. These computers were named the first generation equipment.

Better Computers:

Transistor Technology gave advent of second generation of computers. These were smaller in size, but more reliable and had higher speed of operation. A 2nd generation computer consisted of IBN-370 type. The fourth generation computer, presently manufactured by USA, Japan and other European and Asian countries are based on large scale integration. Better computers are under trial in USA and Japan. These are based on artificial intelligence. They will think the human brain, collect most information from their reservoir of memory, and make expert judgment and decisions.

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