First Ever Computer

by roshi on July 6, 2007

in Computer

A computer is a machine for manipulating data according to a list of instructions. Computers take numerous physical forms. Early electronic computers were the size of a large room, absorbing as much power as several hundred modern computers. Today, computers can be made small enough to fit into a wrist watch and be powered from a watch battery.

Society has come to recognize personal computers and their portable equivalent, the laptop computer, as icons of the information age; they are what most people think of as “a computer”. However, the most common form of computer in use today is by far the embedded computer. Embedded computers are small, simple devices that are often used to control other devices—for example, they may be found in machines ranging from fighter aircraft to industrial robots, digital cameras, and even children’s toys.

First ever Computer

ENIAC short for Electronic Numerical Integrator And Computer, was the first general-purpose electronic computer. It was a Turing-complete, digital computer capable of being reprogrammed to solve a full range of computing problems. ENIAC was designed to calculate artillery firing tables for the U.S. Army’s Ballistic Research Laboratory, but its first use was in calculations for the hydrogen bomb.

When ENIAC was announced in 1946 it was heralded in the press as a “Giant Brain”. It boasted speeds one thousand times faster than electro-mechanical machines, a leap in computing power that no single machine has since matched. This mathematical power, coupled with general-purpose programmability, excited scientists and industrialists. The inventors promoted the spread of these new ideas by teaching a series of lectures on computer architecture.

Eniac-1

ENIAC-2

ENIAC

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