A Short Background About Computers
A Short History of Computer systems
One of the first machines designed to assist people in calculations was the abacus which is still getting used some 5000 years following its advent. In 1642 Blaise Pascal (a well-known French mathematician) invented a great adding machine based upon mechanical things in which amounts were symbolized by the cogs on the rims. Englishman, Charles Babbage, made in the 1830's a " Difference Engine" made out of metal and pewter rods and gears, and in addition designed a additional device which in turn he referred to as an " Analytical Engine". His style contained the five key characteristics of modern computers: -- 1 . A great input system
2 . Storage for numbers waiting to be processed
3. A cpu or amount calculator
4. A unit to regulate the task as well as the sequence of its computations 5. An output system
Augusta Wujud Byron (later Countess of Lovelace) was an associate of Babbage who may have become known as the first pc programmer. An American, Herman Hollerith, developed (around 1890) the first electrically driven device. It utilized punched cards and steel rods which passed through the holes to close an electrical circuit and thus create a counter to progress. This machine was able to complete the computation of the 90 U. S. census in 6 several weeks compared with six 1/2 years for the 1880 census which was by hand counted. In 1936 Howard Aiken of Harvard College or university convinced Jones Watson of IBM to get $1 million in the development of a great electromechanical variation of Babbage's analytical engine. The Harvard Mark you was completed in 1944 and was almost eight feet high and 55 feet very long. At about the same time frame (the overdue 1930's) Ruben Atanasoff of Iowa Express University fantastic assistant Clifford Berry built the initially digital computer system that worked electronically, the ABC (Atanasoff-Berry Computer). This machine was basically a tiny calculator. In 1943, included in the British battle effort, a series of vacuum tube based computers (named Colossus) were developed to bust German top secret codes. The...