Not specifically computers, but if you want a very deep dive into the creation of the internet (including some bits about the earliest computers) The Dream Machine is a great, and extensive look at the history of the internet through the lens of J.C.R. Licklider's life. It was rather mind blowing to me in various ways, one of the big ones being that it seems a lot of early computer pioneers weren't only mathematicians and physicists, but also psychologists.