IBM OS/2 1.0

This was the first release of IBM OS/2 under the partnership with Microsoft. It was marketed as the 'platform for the '90s'. OS/2 1.0 was 16-bit OS and did not included a GUI on this release. It was initially announced on April 2nd, 1987 and its estimated shipping date was the first quarter of 1988, but it was actually released early on December of 1987.


 * Features
 * 16-bit multi-tasking protected-mode operating system with pre-emptive scheduling, multi-threading, dynamic linking, and virtual memory.
 * Memory protection capabilities.
 * Supports up to 16MB RAM.
 * OS/2 development API.
 * FAT file system support.
 * Supported shared memory, pipes, queues, semaphores, and signals.

Version 1.0 was text mode only without Presentation Manager (GUI).

IBM Operating System/2 Extended Edition Version 1.0 (OS/2 EE 1.0) provides the capabilities of OS/2 Standard Edition Version 1.0, and adds relational Database and Communications Managers into a single product package.
 * Extended Edition
 * Program number: 5604-097
 * Part numbers: 07F7216 (3,5"), 07F7216 (5,25")
 * Date of announcement: 9 August 1988 (US: July 19, 1988)
 * Date of shipment: 31 August 1988 (US: July 29, 1988)
 * End of Service date: (US: July 29, 1989)

Releases

 * Standard Edition


 * Extended Edition
 * IBM OS/2 Extended Edition 1.0 - English - 3.25-inch Media

Pictures

 * OS2World IBM OS/2 1.0 Picture Gallery

Links

 * 289-625 STATEMENT OF DIRECTION FOR DOS, OS/2 AND LAN OFFERINGS - Announcement Letter Number 289-625 dated November 14, 1989 US - Last Revised on November 14, 1989
 * Announcement Letter Number 287-099 dated April 2, 1987 US - Last Revised on April 2, 1987
 * OS/2 Museum - Version 1.0
 * PS/2 and IBM PC Product Reference Version 4.0