Other Names:

VSE/ESA
DOS/360
DOS/VS
DOS/VSE
SSX/VSE

Categories:

Operating System

Status:

 Active

Vendor:

IBM

Platforms:

z/VSE  

Short Description:

Mainframe operating system used for smaller images

Detail:

System z mainframe operating system usually used for smaller-scale mainframe environments. First released as Disk Operating System/360, or DOS/360 in 1966. Renamed to DOS/VS in 1972, then DOS/VSE (extended DOS/VS) in 1979. Bundled with other products required for DOS/VSE system such as VTAM and CICS in 1982 and called SSX/VSE (Small Systems Executive), later renamed to VSE/SP in 1986. Addressing expanded from 24 to 31 bits in the late 1980s, and renamed VSE/ESA. Renamed again to z/VSE in 1990.

IBM Product IDs:

  • z/VSE V5.x Product ID: 5609-ZV5
  • z/VSE V4.x Product ID: 5609-ZV4
  • z/VSE V3.x Product ID: 5609-ZVS
  • VSE/ESA 2.x Product ID: 5690-VSE
  • VSE/ESA 1.x Product ID: 5750-ACD
  • SSX/VSE Product ID: 5666-293
  • DOS/VSE Product ID: 5745-030
  • DOS/VS Product ID: 5745-010

Entry last updated: 02-Jan-2013

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