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)
• BookManager® READ
• Bulk Data Transfer (BDT)
• Common Information Model (CIM)
• Communications Server
• Cryptographic Services (includes ICSF, OCSF Base, PKI Services, and System SSL)
• Distributed File Service
• DFSMSdfp
• EREP
• ESCON Director Support
• FFST
• 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 Knowledge Center for z/OS
• IBM Tivoli® Directory Server for z/OS
• IBM z/OS Liberty Embedded
• ICKDSF
• Integrated Security Services (includes Enterprise Identity Mapping (EIM), Network Authentication Service, and Open Cryptographic Enhanced Plug-ins (OCEP))
• ISPF
• JES2
• Language Environment®
• Library Server
• Metal C Runtime Library
• MICR/OCR Support
• Network File System
• OSA Support Facility
• OpenSSH
• Runtime Library Extensions
• SMP/E
• TIOC
• TSO/E
• Xvfb
• z/OS Font Collection
• z/OS Management Facility (z/OSMF)
• z/OS UNIX System Services
• 3270 PC File Transfer Program