Control Program

from The Free On-line Dictionary of Computing (8 July 2008)

Control Program

   <operating system> (CP) The component of {IBM}'s {Virtual
   Machine} (VM) that provides "guest support" for {operating
   systems} that run on IBM {mainframe} compatible processors.
   Cp does this by providing a seamless {emulation} of privileged
   functions in the problem program environment.

   (1999-01-19)