Virtual Storage Extended
VSE
<operating system> (VSE, formerly DOS/VSE) is a
{multitasking}, {IBM 370}-architected {operating system}
similar to {Multiple Virtual Storage} (MVS).
VSE run jobs in {partitions} rather than {address spaces}, and
uses {POWER} for input/output rather than {JES}, but is
largely similar to MVS. Subsequent VSE/{ESA} releases gave
VSE the {XA-370} channel architecture, 31-bit virtual and real
storage support, and data spaces. VSE is the {IBM} operating
system on one-third of installed {IBM 4381s} and a significant
proportion of {IBM 9370s} as well. It offers {transaction
processing} and {batch processing} capabilities well beyond
{Virtual Machine}'s current capabilities, and has a close
affinity with MVS.
(1997-06-09)