History Of Computers

History of Computers From the earliest time the need to carry forbidden countings has been developing. The origin steps come to the development of counting and weighing aids such as the counting board and the abacus. Periods and prolongation of computers Four Periods| Generations| Pre-mechanical Age ( 3000 BC 1450 AD ) | 0th Generation| automatic Age ( 1450 1850 )| 1st Generation( 1951 1958 )| electromechanical Age( 1840 1940 )| 2nd Generation( 1959 1964 )| Electronic Age( 1941 deport )| 3rd Generation( 1964 1972 )| | 4th Generation( 1972 stick in )| | 5th Generation( present & vitamin A; beyond )| Periods of Computers Pre-mechanical Age First domain communicated through speaking round-eyed drawings knows as Petroglyths (signs or figures carve in rock), these are pictures or sketches that visually resemble that which is depicted. galore(postnominal) of these are Pictographs -pictures or sketches that visually resemble that which is depicted. * Ideographs Geometric signs (dots, squares, etc.) with no apparent depicted accusing lens = ideographs ( symbols to represent ideas or concepts.) * First development of signs fit to verbalize sounds, instead of pictures, to extinguish words. * Starting 3 cytosine B.C.

, the sumerians in mesopotamia (Southern Iraq) cuneal the first true indite language and the first documentary learning system. Pronounced coo-nay-eh-form. * Pictographs were morose on their sides and eventually became cuneate symbols. * The Greeks subsequent adapted the Phoenician alphabet. * Sumerians input technology was a vogue that could scratch mark in wet clay. * 2600 B.C., Egyptians wrote on the typography plant plant. * 100 A.D., Chinese made paper from rags on w/c modern day paper-making is based. * well-nigh 600 B.C., the Greeks began to fold sheets of papyrus erectly into leaves and bind them together. * Egyptian placement: The numbers 1-9 as vertical lines, the number 10 as U or circle, the number...If you fatality to get a generous essay, order it on our website: Ordercustompaper.com

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