Search Posts:

Delta Products

View Entire Thread

Return to Threads

  by Don Burns - 10/27/2016 21:36
Delta Products built and sold these S-100 systems. Then their name changed to XOR (at same physical location) and may have been because purchased by US Micro. I believe for a period of time bare bone boards were sold as XOR while Delta Product boards were populated. Not real sure anymore. XOR also made early PC clones before disappearing. I have a multi-page US Micro sale booklet and a 1982 price sheet.

More info on the Delta Prod/XOR Z-80 board & 64K dynamic RAM boards - they both used S-100 pin 60 (SIXTN) for MREQ* vs. the more common pin 65. Plus the CPU board can only address 20 address lines and not the full 24 address lines of the S-100 spec's. Easy to change the first one once you are aware of it.



Buy a Commodore Computer Poster

Popular Topics and FAQs

Past Issues:

Heathkit EC 1

This image was selected at random from the archive. Click image for more photos and files from this set.