Use the PCjs Explorer to browse the collection of operating system software for IBM PCs and compatibles.

Featured PC Operating System Software

Microsoft Windows 1.0
("Premiere Edition")

Microsoft Windows 1.1 on CGA
(1985)

Microsoft Windows 1.1 on EGA
(1985)

IBM OS/2 1.0
(1987)

Microsoft Windows/386 2.0
(1987)

Microsoft Windows 3.0
(1990)

Microsoft Windows 3.1
(1992)

Microsoft Windows 95
(1995)