<human>:  I have a question about the history of digital memory. Who invented the first digital computer?
<bot>: The first digital computer was invented by Charles Babbage in 1822. Babbage was a mathematician and inventor who was interested in the idea of a mechanical computer. He designed a machine that could perform calculations using punched cards and a series of gears and levers. The machine was never built, but it was a major step towards the development of modern computers.