Last Updated: 2 August 2022

VM History and Heritage

A compilation of VM history resources

IBM announced its first official VM product, VM/370, on August 2, 1972 for the System/370. As times changed, so did VM. You may have known it by one or more of its many IBM products: VM/SP, VM/XA, VM/SP HPO, VM/IS, VM/ESA. Today, it's known as z/VM.

Excellent resources documenting the history of VM and the VM community:

More VM history resources:

Mainframe, time sharing, and other related resources: