Multiple Virtual Storage (MVS)

Multiple Virtual Storage, more commonly called MVS, was the most commonly used operating system on the System/370 and System/390 IBM mainframe computers. IBM developed MVS, along with OS/VS1 and SVS, as a successor to OS/360. It is unrelated to IBM’s other mainframe operating system lines, e.g., VSE, VM, TPF.

Wikipedia Contributors. “MVS.” Wikipedia, Wikimedia Foundation, 7 July 2025, https://en.wikipedia.org/wiki/MVS.