MVS >multiple virtual storage
MVS/ESA > multiple virtual storage/enterprise system Architecture
Z/OS > zero down time os
TSO > time sharing option
ISPF > interactive system product n facility
JES > job entry subsystem
SPOOL>simultaneous peripheral operations online
SDSF> system display search facility
CICS>customer information control system
COBOL>common business oriented language
EPL>enterprise programming language
PL/1 >programming language1
JCL>job control language
PDS>partitioning data set
PS >physically sequential
VSAM>virtual storage access method /memory
IMSDB> information management system database
IDMS > integrated database management system
DB2>database 2
SPUFI > SQL processing using file input
QMF> Query Management Fecility
SPUFI > SQL processing using file input
QMF> Query Management Fecility
