commonly called MVS, is the most commonly used operating system on the System/370, System/390 and IBM Z IBM mainframe computers. IBM developed MVS, along with
for the older OS/390-branded versions in late 2004. OS/360 MVS z/OS z/TPF z/VM z/VSE Linux on IBM Z Alsop, Stewart. "The IBM System/390". IBM. Retrieved
The IBM System/390 is a discontinued mainframe product family implementing ESA/390, the fifth generation of the System/360 instruction set architecture
successor to OS/390, which in turn was preceded by a string of MVS versions. Like OS/390, z/OS combines a number of formerly separate, related products