Post #1
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Jordan
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Joined: May 2, 2026, 11:10 AM
Posted: Jul 24, 2026, 11:33 AM
I get batch COBOL + JCL. CICS is still a fog. Is it the thing that makes green screens work?
Thread: CICS
What is CICS in one paragraph? Why do we need it?
Started by Jordan • user3 replies192 viewsLast activity 3 weeks ago
Post #2
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Dave
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Joined: Jul 21, 2024, 2:55 PM
Posted: Jul 24, 2026, 1:33 PM
CICS is the online transaction layer. User hits a transaction id, CICS runs your COBOL program, talks to files/DB2, sends a map (screen) back. Short-lived tasks, many users at once.
Batch = overnight jobs. CICS = daytime clicky / terminal work.
Post #3
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Anita
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Joined: May 29, 2025, 12:45 PM
Posted: Jul 25, 2026, 2:33 PM
Maps are the screen layouts (BMS). That part confused me until I saw one painted in the map editor.
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