Work continues on the Z80 computer. The two final modifications to the box itself are the holes for the status LEDs and the power switch. The green LED indicates power and the orange one disk activity ...

A computer needs some way of interacting with the outside world via input and output devices. It's about time, then, that the Z80 computer project acquires a section dedicated to I/O. The Z80 ...

In a previous article, I mentioned that "when the Z80, which could run 8080 programs as-is, became widespread, there were ...

Cowgol on Z80 running CP/M ties together everything needed to provide a Cowgol development environment (including C and assembler) on a Z80 running the CP/M operating system, making it easier to get ...

Full disclosure: [Óscar] isn’t nine now, but he was in 1988 when he wrote LOCS, a drawing program in Z80 assembly modeled after Logo. You can see a demo of the system in the video below. You might ...