"Computer is electronic machine which accept data(input) from user then process it and produce information (output). It also store data for future use."
Computer word
Computer word originate from compute and calculate . Compute mean to count and calculate mean to calculation of values.
Computer invent
In 1822, in English mathematician, Charles Babbage designed a machine to be driven by steam power. He named it difference engine. This machine would be able to compute tables of numbers, like logarithm tables. In 1834, he made a more intelligent machine which can be programmed too. It worked on the same principle as a modern electronic computer. But unfortunately, it was too complicated to be built at that time.