<human>:  When was the first software written?
<bot>: The first software was written in the early 1800s by Charles Babbage. He created the first mechanical computer, which was a big machine with many gears and levers that could be moved by hand. He wrote a program to compute pi to a very high degree of accuracy. He was also the first to create a programmable computer, which allowed him to write a program to solve other problems.