Vintage 1985 BELL Technolgies BELL HUB-6 IBM Xenix 5.25” Floppy Disk

Disk Operating System Version 3.30 vintage IBM 5.25" Diskette 1987

IBM Disk Operating System DOS Version 3.20 5.25" Software & References Untested

OS/2 OS2 Version 2.1 Vintage IBM PC Operating System Computer Software Complete

Vintage IBM Personal Computer Software DOS 3.10 (H)

Vintage Collector 1988 IBM DOS Version 4.01 Disk Operating System (2) 3.5 Floppy

IBM Disk Operating System version 3.30 Manual Book with ONE 5.25 Floppy Disk

Microsoft Windows 3.11 Operating System on six 3.5" Floppy Disks, vintage