OS/2 1.0

OS/2 1.0
Version of OS/2
OS-2 1.x Logo.png
OS2-1.0-Interface.png
Version1.0
CodenameCP/DOS, ADOS (Advanced DOS), DOS 5.0
Preliminary name
ArchitectureIntel 286
Latest build
Release date1987-12
Support end
Replaced by
OS/2 1.1

OS/2 1.0 is the first version of OS/2 to be released. It was originally meant to be DOS 5.0, and in fact, some early documentation refers to it as "DOS 5.0" rather than "OS/2". There is no GUI in this release.

Builds[edit | edit source]

IBM versions[edit | edit source]

Pre-release[edit | edit source]

Leaked build IBM OS/2 Internal Revision 7.68 (22 October 1986)
Leaked build IBM OS/2 Internal Revision 7.68.18 (12 December 1986)
Leaked build IBM OS/2 Internal Revision 7.68.17 (26 February 1987)
Leaked build IBM OS/2 Internal Revision 4.41 (2 December 1987)

RTM[edit | edit source]

Leaked build IBM OS/2 Version 1.0

Microsoft versions[edit | edit source]

Pre-release[edit | edit source]

Leaked build Microsoft OS/2 Version 1.0 Internal Revision 3.42.1.1 (8 May, 1987) (OS/2 SDK 1.00)
Confirmed build Microsoft OS/2 Version 1.0 (OS/2 SDK 1.01)

RTM[edit | edit source]

Leaked build Microsoft OS/2 Version 1.0
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