Digital Research 8K RAM S-100 Board S100 s100

SEMIDISK S-100 BOARDS/ TARBELL/ RAM MEMORY

7 Vintage Epsco marine Loran S100 type 1970s computer circuit boards, backplane

Vintage S-100 bus backplane (motherboard) 10-slot Quasi-Coax Integrand Research

S-100 backplane motherboard bare PCB 9 slot (for Altair/IMSAI)

Vintage MTI 100000 8085 CPU Board AMD AM8085A Intel 8156 8255 S-100 Computer

Vintage PTCO 4KRA S100 Board Processor Technology 4K Static RAM s-100

JTM Vintage 1978 Static Memory Computer Board - S-100 Board - Untested (2)