A computer is a machine that can store, retrieve, and process data. The data can be in the form of text, pictures, sound, or videos. The first computers were created in the early 1800s. They were called mechanical calculators, and they could only be used by mathematicians and scientists.

In 1876, Charles Babbage designed a machine called the Analytical Engine. The Analytical Engine could be programmed to perform any calculation that could be done by hand. However, the machine was never completed.

In 1937, John Atanasoff and Clifford Berry developed the first electronic computer. Their computer was called the Atanasoff-Berry …