1986 IBM Reference Guide To Operations Personal Computer XT 6322511 5.25" Floppy

Vintage 1986 IBM Disk Operating System DOS 3.20 Binder And 5.25" Floppy Disks

IBM 3.0 Basic PC Hardware Reference Library Manual 6361132

IBM Disk Operating System DOS 3.10 (3.30 disks)

IBM Personal Computer Hardware Reference Library Guide To Operations 6025000 '81

April 1984 Vintage IBM Guide to Operations Personal Computer XT Manual with Disc

IBM Physics Discovery Series Electric Fields DOS 5.25 Floppy Sealed PC XT AT PCj

IBM Exploring the IBM Personal Computer Disks V1.0 1983 6936820 & 6936820