ZX80 / ZX81 hardware and software offered for sale or swapping
- Posts: 107
- Joined: Mon Jun 08, 2015 6:57 pm
- Location: Amsterdam
Optrek-RS stands for Pull-up Resistance(s) The book was originally written by Stephen Adams (1982), but this board comes out of the dutch version Published by Kluwer (mine has ISBN 90201 1640 1 that was the 3rd print 1984)
32K SRAM WRX compatible, 32Bit IO-Port, ROM Ghost, ZX-Printer.