<human>:  With regards to the history of Computer Science, how did the first computer work?
<bot>: The first computer was called the Z1 and was designed by Konrad Zuse. It was a mechanical computer. The Z1 had a drum with holes in it that were wired to a set of gears. The gears were connected to a keyboard, which was used to input numbers and instructions. The Z1 was not programmable, so it could only perform a limited set of calculations.