From Computer History Wiki
Jump to: navigation, search

VM/370 was the first operating system on the IBM System/370 mainframe platform that supported virtual machines. This was a VERY popular OS for people to load onto their mainframes as now they wouldn't have to choose which OS to load for applications, as they could now load ALL of them.

Documentation sets

Bitsavers has a few manuals online. They can be found here:

Getting this to run

Thankfully the software is available, although I've found a few 'issues' with the install process and I've outlayed a tested one here: Installing VM/370 on Hercules

31bits and beyond

There has been a movement to expand the 370 virtual machine to incorporate 31bit addressing of the 390, allowing larger program sizes. Primarily this has been to allow gcc to self host under MVS.

There has been regular updates to what is currently known as the 'six pack'.

Further reading

External links