z/OS base elements

z/OS® provides function that is equivalent to the following elements. For the version and release numbers of those elements that also exist as separately orderable products, see z/OS Planning for Installation.

For an extra set of integrated features that is available on an optional basis, see z/OS optional features.

The following base elements are included in z/OS:

  • Alternate Library for REXX.
  • Base Control Program (BCP)
  • Bulk Data Transfer (BDT)
  • Common Information Model (CIM)
  • Communications Server
  • Cryptographic Services (includes ICSF, PKI Services, and System SSL)
  • Data Set File System (DSFS)
  • DFSMSdfp
  • DFSMStvs
  • EREP
  • ESCON Director Support
  • First Failure Support Technology/MVS (FFST/MVS)
  • GDDM (includes PCLK and OS/2 Link)
  • Hardware Configuration Definition (HCD)
  • High Level Assembler (HLASM)
  • IBM® HTTP Server - Powered by Apache (includes IBM HTTP Server NA Secure)
  • IBM Tivoli® Directory Server for z/OS
  • IBM z/OS Liberty Embedded
  • z/OS Management Facility (z/OSMF)
  • ICKDSF (Device Support Facility)
  • Start of changeIBM Z® Deep Neural Network Library (zDNN)End of change
  • Integrated Security Services
  • ISPF
  • JES2
  • Language Environment®
  • Metal C Runtime Library
  • MICR/OCR
  • Network File System (NFS)
  • Runtime Library Extensions
  • SMP/E
  • Terminal Input Output Controller (TIOC)
  • Time Sharing Option/Extensions (TSO/E)
  • XML Toolkit for z/OS
  • z/OS Container Extensions (zCX)
  • Start of changez/OS Data GathererEnd of change
  • z/OS File System (zFS)
  • z/OS Font Collection
  • z/OS OpenSSH
  • z/OS UNIX System Services
  • z/OS Xvfb
  • 3270 PC File Transfer Program