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◈ALB Atlas

z/OS Alive

z/OS
KindOperating system
Appeared2000
StatusAlive
CreatorIBM
FamilyOS/360
PlatformzSeries
Sourcewww.ibm.com ↗

MVS renamed again — the OS/360 lineage unbroken since 1966; the mainframe OS banks still bet on.

Descended from MVS
Ran on IBM System z
Created by IBM
Predecessors MVS

z/OS (2000) is the current 64-bit mainframe OS — the MVS lineage extended to z/Architecture, still running COBOL and JCL jobstreams written when humans had never seen a microprocessor.\n\nIt remains the world's most backward-compatible OS — 360-era binaries still run — and still clears most of the world's card transactions.

Sources

  1. ibm.com/products/zos
  2. en.wikipedia.org/wiki/Z/OS