________________________________ On Thursday 23 October 2008 16:02, James Wilson wrote: [snip] ------REPLY------ If anyone is interested in building their own home brew computer they are welcome to join us on the N8VEM project. There is a known working Z80 CP/M home brew computer with all hardware and software information published and freely available. PCBs are available for the SBC, an ECB backplane, and the recently verified working ECB bus monitor (sort of a Jade Bus Probe for ECB). There are some builder created videos of the ECB bus monitor in action here: http://www.hd64180-ecb.de/html/video.html Soon I will be having a Prototype board PCB manufactured and hopefully not too long after that I will be making a Disk IO board PCB available as well. There are numerous N8VEM builder projects in various states of completion ranging from the GIDE, LCD displays, SD reader/writers, wireless links, NVRAM, and various other things better described by the builders. If you are interested in building your own home brew computer please consider joining the N8VEM project. Thank you and have a nice day! http://groups.google.com/group/n8vem Andrew Lynch