Grasp (spooler)
GRASP was a systems software package that provided spooling facilities for IBM mainframes: the IBM/370 running DOS/VS or DOS/VSE environment, and IBM/360 running DOS/360.
Overview
GRASP was a mainframe operating system enhancement available for DOS/360, DOS/VS, DOS/VSE, and some third-party compatible operating systems. Subsequent versions became known as GRASP/VS and GRASP/VSE.It spooled input and output data, freeing programs from dependence on the speed of peripherals, such as printers and punched card equipment. GRASP was the first such spooler for IBM mainframes, although it later had competition from IBM's own POWER as well as DataCorp's Spooler.
Platforms
GRASP ran on the IBM/360 and IBM/370 and clones under DOS/VS, DOS/VSE, and DOS/360.GRASP required a dedicated partition. With DOS having only three partitions and DOS/VS seven, losing a partition restricted what the mainframe could run. However, the concept of the F0 partition meant this could run without the host computer giving up a partition. For DOS/VS and DOS/VSE versions, SDI re-engineered a version of Fx developed for DOCS and Spooler.