I will try to explain you what is a computer and his main functions.
Today, a computer is usefull when you want to play games, work or for the office.
First, i must explain you the origin of the computer . .. The first electronicals computers were made in the first half of the 20 th century. The Mark I, in 1937 was able to calculate 5 times more quickly than humans. The manufacturer was IBM. This computer was built with mechanical components. It was a great invention. In 1947, Mark II is born, his gears are replaced by electronic components. During the second World War, in 1943, the ENIAC, Electronical Numerator Integrator And Computer was made. It was used for calculations having been used to develop the bomb H.
The first data-processing error must with an insect which, attracted by heat, had come to place itself in the lamps and had created a short-circuit.