Later MVS Versions and Enhancements
In 1977 IBM announced MVS/System Extensions, a "program product" (i.e. it cost extra money) which improved MVS performance.
Descendants of MVS are still used on the latest descendants of System/360, System/390 and zSeries; it was renamed to OS/390 for System/390, and the 64-bit version for the zSeries was named z/OS.
Read more about this topic: OS/360 And Successors
Famous quotes containing the word versions:
“The assumption must be that those who can see value only in tradition, or versions of it, deny man’s ability to adapt to changing circumstances.”
—Stephen Bayley (b. 1951)