History Of Computers

History of Computers From the earliest times the need to carry require countings has been developing. The origin steps involved the developing of counting and computing aids such as the counting board and the abacus. Periods and generation of computers Four Periods| Generations| Pre-mechanical Age ( 3000 BC 1450 AD ) | 0th Generation| machinelike Age ( 1450 1850 )| 1st Generation( 1951 1958 )| Electromechanical Age( 1840 1940 )| 2nd Generation( 1959 1964 )| Electronic Age( 1941 sustain )| 3rd Generation( 1964 1972 )| | 4th Generation( 1972 present )| | 5th Generation( present & vitamin A; beyond )| Periods of Computers Pre-mechanical Age First humans communicated through speech simple-minded drawings knows as Petroglyths (signs or figures carved in rock), these argon pictures or sketches that visually resemble that which is show. Many of these are Pictographs -pictures or sketches that visually resemble that which is depicted. * Ideogra phs Geometric signs (dots, squares, etc.) with no apparent depicted objective lens = ideographs ( symbols to represent ideas or concepts.) * First development of signs corresponding to verbalize sounds, instead of pictures, to express words. * Starting 3100 B.C.

, the sumerians in mesopotamia (Southern Iraq) Cuneiform the first off true written language and the first real learning system. Pronounced coo-nay-eh-form. * Pictographs were turned on their sides and ultimately became cuneiform symbols. * The Greeks subsequent adapted the Phoenician alphabet. * Sumerians input engineering was a vogue that could scratch marks in im! pish clay. * 2600 B.C., Egyptians wrote on the paper plant plant. * 100 A.D., Chinese do paper from rags on w/c modern daylight paper-making is based. * Around 600 B.C., the Greeks began to fold sheets of papyrus vertically into leaves and bind them together. * Egyptian System: The numbers 1-9 as vertical lines, the number 10 as U or circle, the number...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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