That turned out to be the first of a multipart series on his Altair 8800 Again simulator ... to those that just run a Raspberry Pi inside. The middle ground will use an Arduino or some other ...

At the time, this was a huge deal. Some even argue that it made an AM radio one of the first I/O devices for use with the Altair 8800. At demonstration of the code at a meeting of the Homebrew ...