z/OS optional features descriptions

The following is a description of each optional feature in z/OS®.

DFSMS features (DFSMSdss, DFSMShsm, and DFSMSrmm)
DFSORT
GDDM-PGF
GDDM-REXX
Hardware Configuration Manager (HCM)
High Level Assembler Toolkit
Infoprint Server
Resource Measurement Facility (RMF)
Restricted use common service area (RUCSA)
SDSF (System Display and Search Facility)
Security Server
z/OS Advanced Data Gatherer
z/OS Authorized Code Scanner (zACS)
z/OS C/C++
z/OS Change Tracker
z/OS Security Level 3
z/OS Workload Interaction Correlator
zEnterprise Data Compression (zEDC) for z/OS