A book about the ULA chip and other hardware information.

A powerful 48K/128K ZX-Spectrum clone

This is an actual computer, built completely from scratch. I began the project in the spring of 2006, while I was taking a course on microcomputers. My Z80 system will remain a work in progress as long as I can think of new things to add to it.

After several years' worth of interruptions and procrastination, the homebrew computer project has finally become a reality. Now on the forth revision of the design, the system actually works! As this page seems to be getting its fair share of traffic lately, I'm trying to keep it reasonably up-to-date. I've also published all of the Z80 project's source code in my online source code repisitory. However, don't be shy to drop me a line if you have specific questions or would like to discuss your own project.

Some old software from MICROCode for your CP/M computers

If you're interesting in the old computers, you haven't miss this page with interesting constructions and informations.

The N8VEM Single Board Computer is a home brew Z80 small computer project. It is made in the style of vintage computers of the mid to late 1970's and early 1980's using a mix of classic and modern technologies.