I’ve been having a blast with DOS 2.10. Actually it’s PC-DOS 2.10, the IBM version. I built a simple DOS VM on VirtualBox on my Mac, found and downloaded PC-DOS install floppy images, maybe there was just one floppy, and booted up the computer from the floppy. (More)

I came across this really neat video, “Building a small Z80 computers - how old computers and consoles work,” where the author builds almost the simplest possible working Z80 computer. The Z80 was the processor at the heart of many of the CP/M computers in the late 70s and early 80s. (More)