The computer era 1 (2497 (1954)-2501)
.This vacuum tube era computer (VACUUM TUBE) is an electronic circuit. There are also very large machine. Use a lot of electricity. Making machine with high heat, so an error occurs; The UNIVAC I computers, IBM 600
com-univac
.The computer era 2 (2502 (1959)-2507 (1964))
. In this era of computers using a transistor (TRANSISTOR) is an electronic circuit and the magnetic ring is used as a memory. The computer is smaller than the first generation, low cost. Use the power and precision than the era of computer
3 (tr.Prof. 2508 (1965)-2513 (1970))
this era computer circuits, ICS (INTEGRATED CIRCUIT) is a semiconductor that allows you to logically cycle has already been printed on sheets of Silicon (SILICON) Called "chips"
computer era 4 (2514 (1971)-2523 (1980))
. In this era of computer use LSI circuits (LARGE-SCALE INTEGRATED CIRUIT) is an integrated circuit c-I-a lot of Silicon into a Championship, 1 sheet can contain more than 1 million cycles. A single-chip CPU patua called "micro Pro rachet Sir"
.
Yakhu computer at 5 (2524 (1981)-present)
. VLSI circuits in this age of computers (VERY LARGE-SCALE INTEGRATED CIRUIT) is developing a more powerful microprocessor.
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