In the first program, 1936 to 1951, Alan Turing lays the groundwork for the creation of the modern computer and John Von Neumann creates the working architecture of all computers going forward. However, the technological breakthrough that changed everything was the invention of the transistor in 1947. This program also explores how the building of large mainframe computers helped develop the hydrogen bomb, how the commercial aspect of computers could be exploited, and how, from the beginning, computers opened up the possibility of artificial intelligence.