Generations of Computer The termComputer Generationgenerally refer to the each phase of the computer developement. In every phase computer undergone a major technological developement which changed the way computer operates,decreased the size of computing devices, becomes cheaper, more powerful and reliable. Nowadays most of the computer uses the Stored Program Concept that was proposed by Dr. John Von Neuman in 1945. Computer generations start from 1946 with vaccum tube circuitry to the present day and beyond with artificial intelligence. Five Generations of computer are as Follow:1. First Generation(1946-1959):In first generation vaccum tubes were used for circuitry and magnetic drums for memory. They used the "Stored Program Concept" and they were very large in size taking up the entire rooms and generating a lot of heat. Machine languages were used for giving the instructions. Examples: ENIAC(Electronic Numerical Integrator And Calculator) was the first electronic computer developed.EDVAC: Electronic Discrete Variable Automatic Computer EDSAC: Electronic Delay Storage Automatic Computer UNIVAC-I: The Universal Automatic Computer 2. Second Generation(1959-1965):This generation using thetransistorwere cheaper, consumed less power, more compact in size, more reliable and faster than the first generation machines made of vaccum tubes.
Posted on: Tue, 10 Sep 2013 08:16:10 +0000
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