This site is dedicated to sales of an educational 8-bit computer kit which uses the Z80 for its central processing unit (CPU). This microcomputer kit is based on the wire-wrap hobbyist system I describe in my main web site, which in turn is based on designs made popular by Steve Ciarcia in his book Build Your Own Z80 Computer, Byte Books, 1981. I created this kit in response to requests by site visitors for an easier way to build a Z80-based computer. The best way to get familiar with the kit for sale here is to download and read the kit instructions. If you still have questions, please email me.  --Best wishes, Donn Stewart.

Display kit

Price: $24.00

This is the kit for building the system bus display. This display is not part of the computer itself. That is, the computer will operate by itself without this display attached. However, when the bus display is attached, and the computer is run with the slow clock, the activity on the system buses can be followed. It allows you to see how the microcomputer system works. If the activity is a little fast even with the slow clock, you can take a video of the display and go frame-by-frame, and see what happens on the buses with each clock cycle. It is one of the educational features of this computer kit project.