Control Program Facility

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CPF ( Control Program Facility ; German: Steuerprogramm ) is a mini-computer class operating system introduced in 1979 for the IBM System / 38 . It can also be found in an expanded form in the OS / 400 of the later IBM AS / 400 computers. However, CPF is not derived from the SSP , the operating system of the IBM System / 34 and System / 36.

construction

The control program CPF is an object-based system which can be used by means of the commands of the integrated control language CL . All resources are thus defined as CPF objects using 19 different object types . DDS ( data definition specifications ) are used for the application-independent data description .

Libraries

Various libraries are already supplied with the CPF:

  • QGPL - General Library
  • QSYS - system library
  • QSPL - SPOOL library
  • QTEMP - Temporary Library
  • QSRV - maintenance library
  • QRECOVERY - recovery library

literature

  • IBM System / 38 System Control Program (CPF) Control Language (CL) Manual - 1981 IBM

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