IBM

CICS

ibm.com

IBM home page for Customer Information Control System (CICS). Includes links to support, download, case studies, library, services, events and education. CICS is a transaction pr…

153 visits Sep 10, 2024 Details

CICS Update Journal

xephon.com

Xephon's monthly technical journal covering CICS. Older issues, including published code, available for free download.

109 visits Sep 5, 2025 Details

CICS: Bob Yelavich

yelavich.com

CICS technical information from a retired IBM expert.

266 visits Nov 25, 2025 Details

Data Processing FAQ

members.aol.com

Although intended to provide answers to oft-asked mainframe technical questions, the questions are those that frequently come up in day-to-day work.

101 visits Apr 19, 2025 Details

DB2 Server for VSE & VM

ibm.com

IBM home page for Database 2 running on z/VM and VSE/ESA. Overview and associated products, with links to features and benefits, system requirements, success stories, news, events…

60 visits Jun 18, 2025 Details

DITTO/ESA

ibm.com

IBM home page for Data Interfile Transfer, Testing, and Operations Utility for ESA (DITTO/ESA). Overview of features with links to support, news, library and more information. DI…

496 visits Apr 9, 2024 Details

GDDM: Graphical Data Display Manager

-306.ibm.com

Available for z/OS, z/VM and VSE/ESA, with some components base elements included with z/OS.

321 visits May 27, 2024 Details

IBM Application Development Software

ibm.com

Includes WebSphere and VisualAge, as well as traditional programming language compilers and tools. Plus software management tools such as Software Configuration and Library Manage…

438 visits May 4, 2025 Details

IBM End of Support Dates

ibm.com

IBM's official listing of the announced end of support date, if any, for each of their software products.

285 visits Apr 9, 2026 Details

IBM Storage Software

ibm.com

IBM home page for mainframe storage software, including DFSMS, DFSORT and DataCore SANSymphony, with a link to the TotalStorage Software Roadmap.

126 visits Dec 24, 2024 Details

IBM Transaction Systems

ibm.com

Starting point for information on IBM transaction processing software, including CICS, IMS/TM, WebSphere MQ (formerly MQSeries) and TPF.

86 visits Aug 3, 2025 Details

Jaqui's Papers & Presentations

circle4.com

10 years of technical conference papers and presentation notes by Jacqui Lynch of Circle4 Consulting. Performance, capacity planning and security, including VSAM, z/OS, Linux, TCP…

32 visits Oct 10, 2024 Details

Linux on zSeries

ibm.com

IBM home page for Linux on the eserver zSeries (mainframe).

58 visits Nov 7, 2023 Details

LISTSERV at the University of Georgia

listserv.uga.edu

RACF-L: RACF Discussion List

422 visits Mar 30, 2024 Details

LookAt Message Help Facility

ibm.com

IBM message lookup for z/OS, OS/390, z/VM and VSE/ESA. By operating system version number.

155 visits Oct 18, 2023 Details

Mainframe Month On-line Journal

xephon.com

A free monthly publication from Xephon providing access to complete Adobe PDF copies of two year old editions of their fee-based technical journals covering CICS, DB2, MQ, z/OS, VS…

40 visits Apr 4, 2026 Details

Mainframes.com

mainframes.com

Mainframe programming information, including a large dictionary and links to downloads and manuals.

328 visits May 11, 2025 Details

Mainstar Software: Resources

mainstar.com

Although focused on z/OS storage management, many of the VSAM documents, for example, also apply to VSE/ESA and z/VM. White papers and other articles, much of it vendor-neutral.

11 visits Mar 14, 2026 Details

Mike Murach's Mainframe Books

murach.com

Publisher of books on COBOL, DB2, CICS, z/OS JCL, TSO, VSAM, IMS, and VSE/ESA. Sample chapters and code can be downloaded.

64 visits Jan 21, 2024 Details

MQ Update

xephon.com

Xephon's monthly technical journal covering WebSphere MQ, formerly MQSeries. Older issues, including published code, available for free download.

367 visits Nov 4, 2024 Details

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