These guides are for IBM mainframe operating systems, namely z/OS and its predecessor, OS/390.

Traditional mainframe programming environments

How To Guides for TSO

How To Guides for TSO

How To Guides for ISPF

How To Guides for ISPF

How To Guides for CICS

How To Guides for CICS

Operator Commands

Entering Operator Commands

Verifying the IBM z/OS system configuration.

Verifying Subsystem Configuration
Advanced Function Printing

See also IBM DB2 under Databases.

Operating System and Security Administration

How To Guides for SMS Storage Administration
How To Guides for ACF-2 Security

Communications facilities

How To Guides for TCP/IP on z/OS
How To Guides for VTAM on z/OS

Databases

How To Guides for IBM DB2
How To Guides for Oracle on z/OS

UNIX System Services (USS) and LINUX for z/OS

How To Guides for UNIX System Services
How To Guides for LINUX for z/OS

Next: USS vs. LINUX
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