The history of a computer began many years ago. At the end of the 19th century, Charles Babbage created the first mechanical computer. His idea was to make a machine that could calculate, but it turned out to be quite complex. But Babbage couldn't finish his work. Then the machine was invented by N. A. BERNULLI (B) of America. Nowadays computers are useful tools for all people. A. A. Bernulli B. N. A. Bernulli C. A. N. Bernulli D. N. N. Bernulli E. A. A. Berngoli