Essay about The History of Computers

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The first ever computer was invented in the 1820s by Charlse Babbage. However the first electronic digital computer were developed between 1940 and 1945 in the United States and in the United Kingdom. They were gigantic, originally the size of a large room, and also need to be supply a large amount of power source which is equivalent as several hundred modern personal computers. The history of computer hardware covers the developments from simple devices to aid calculation, to mechanical calculators, punched card data processing and on to modern stored program computers. The tools or mechanical tool used to help in calculation are called calculators while the machine operator that help in calculations is called computer. At first the aids of computation were purely mechanical devices which required the person to set up initial values of an elementary arithmetic operation, then he will have to manipulate the device to obtain the result. Analog computers, which could represented the number in the form of digits,automatically manipulated by mechanical mechanism.

In 1946 the Electronic Numerical Integrator and Calculator (ENIAC) was pioneered by two scientist from University of Pennsylvania, John Mauchly and J.Presper Eckert. Which used a vacuum tubes. They were inspired by the idea of bush differential analyzer that is why the ENIAC was called the descendant of Dr Bush’s machine. However their inventions are far more ambitious, it contained nearly 18000 vacuum tubes and…