IBM Technical Reference 6936808 Personal Computer XT

IBM PCjr Personal Computer Technical Reference (With update)

Rare Vintage IBM Technical Reference - Personal Computer AT 1502243

HUGE lot 1980s IBM PC Reference Library: DOS, BASIC, Word tech manuals SEE PIX

IBM PC Hardware Reference Library Technical Reference Options Adapters Vol 1 & 2

ibm system / 2 and bios interface technical reference ( slipcase )

IBM Disc Operating System 3.30 Technical Reference 80X0945

IBM BASIC 3.20 Personal Computer Software Manuals (1986) w/ Slipcase