OS390 - What does OS390 stand for? The Free Dictionary
References in periodicals archive
Softek Storage Manager 2.1 supports almost all operating systems deployed in enterprise environments, including Microsoft Windows NT/2000/XP, Sun Solaris 2.6,7 and 8, Hewlett-Packard HP/UX 11 and 11i, IBM AIX 4.3.3 and 5.x, Linux and OS390
in the IBM OS390
benchmarking tool called the PAIO driver.
IBM has now started to ship the first version of z/OS - the successor to the OS390
operating system which has been running IBM mainframes for years.