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Mainframe Glossary A-Z Index

Browse 1393 mainframe terms organized alphabetically. Click any letter to explore terminology related to z/OS, COBOL, JCL, CICS, DB2, VSAM, and more.

A

98 terms

 B

74 terms

 C

337 terms

 D

359 terms

 E

216 terms

 F

115 terms

 G

5 terms

 H

6 terms

 I

20 terms

 J

15 terms

 K

2 terms

 L

8 terms

 M

11 terms

 N

4 terms

 O

5 terms

 P

17 terms

 Q

2 terms

 R

15 terms

 S

35 terms

 T

10 terms

 U

6 terms

 V

10 terms

 W

10 terms

 X

6 terms

 Y

0 terms

 Z

7 terms

About This Glossary

This comprehensive mainframe glossary covers terminology used in IBM z/OS environments, including concepts related to:

Languages

COBOL, PL/I, Assembler, REXX

Subsystems

CICS, IMS, DB2, MQ

Storage

VSAM, DASD, SMS, Catalogs

Operations

JCL, JES, TSO, ISPF

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