1988 Macintosh Family Hardware Reference Mac II Mac Plus Mac SE 400pg Nubus SCSI

Z80 Assembly Language Subroutines Leventhal TRS-80 Commodore 128 Programming

6809 Assembly Language Programming - Leventhal Tandy Color Computer 3 CoCo OS-9

Z80 Assembly Language Subroutines Leventhal TRS-80 Commodore 128 Programming

Apple II / II Plus / IIe / IIgs Sound Card PCB - Stereo Audio & Speech Synthesis

1987 Apple IIGS Technical Reference 400pg Graphics Sound 65816 Programming GS/OS

Apple II II+ Europlus IIe Dead Test RAM Diagnostic ROM Card, Gold edge fingers

1987 Apple IIGS Technical Reference 400pg Graphics Sound 65816 Programming GS/OS