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Automatic digital computers were first built during WW2. They were invented in the 1830s by Charles Babbage, but he was unable to build them.

Automatic analog computers were built in the 1920s, if not before.

Computer history is as old as human history. It started when man started counting and summing with the help of fingers. First device which is known as computer is ABACUS invented 3000 BC. It is still in use in China, Japan, Korea, etc.

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12y ago

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