Operating System/400

Operating System/400 (OS/400) is the operating system for IBM's Application System/400 (AS/400).

Features

• Control Language (CL)
• OS/400 Procedures Language 400/REXX (REXX/400)

• Media and Storage Extensions
• Print Services Facility/400

Versions

OS/400 V1 (5728-SS1)

• Version 1 Release 1 (Aug 1988)
• Version 1 Release 2
• Version 1 Release 3 (Sep 1990)

OS/400 V2

• Version 2 Release 1 (May 1991)
• Version 2 Release 1.1 (Jun 1992)
• Version 2 Release 2 (Dec 1992)
• Version 2 Release 3 (Dec 1993)

OS/400 V3 (5716-SS1)

• Version 3 Release 0 Modification 5 (Jun 1994)
• Version 3 Release 1 (Nov 1994) - database manager renamed to DB2/400
• Version 3 Release 2 (Jun 1996)
• Version 3 Release 6 (Dec 1995)
• Version 3 Release 7 (Nov 1996)

OS/400 V4 (5769-SS1)

• Version 4 Release 1 (Aug 1997)
• Version 4 Release 2 (Feb 1998)
• Version 4 Release 3 (Sep 1998)
• Version 4 Release 4 (May 1999)
• Version 4 Release 5 (Jul 2000)

Publications

• System Operator's Guide, SC41-8082
• Programming: Work Management Guide, SC41-8078
• AS/400 Programming Reference Summary Version 3, SX41-3720-01
• Programming: Reference Summary, SX41-0028

Links

• ZP88-0307 (1988-06-21) IBM Operating System/400 Licensed Program
• ZP88-0327 (1988-06-21) IBM OS/400 in Systems Application Architecture