z/OS and Friends: Rich Functionality Is What CICS Is All About—Then and Now
April 28, 2025
Joe Gulla traces the evolution of the Customer Information Control System (CICS), harkening back to its first release and providing a comprehensive accounting of its modern-day application development capabilities
Articlesz/OS and Friends: CICS Changing With the Times While Serving Longstanding Applications
April 7, 2025
Joe Gulla explains how the Customer Information Control System (CICS) relates to the programmer experience, and how it has evolved to handle growing workloads while embracing web services and new languages like Java
Articlesz/OS and Friends: What Is the JES Programming Dimension and Why Is It Important?
March 24, 2025
Joe Gulla looks at the programming side of JES2, including the phases of job processing and how Job Control Lanuage (JCL) was created to "feed the beast"
ArticlesThe Return of the Prodigal Mainframer
March 14, 2025
After five years away from the mainframe, Izzi Software’s Jennifer Nelson shares her observations and notes that while a lot has changed, some things remain the same
Articlesz/OS and Friends: JES—One of the Most Important Base Elements of z/OS
March 10, 2025
Joe Gulla explains how the Job Entry Subsystem (JES) contributes to the overall functionality of z/OS, outlining the five main characteristics of JES2
z/OS and Friends: Optional Features Complete a Compelling and Function-Rich Legacy OS
February 24, 2025
Following up on his exposition of the 50-plus base elements of z/OS, Joe Gulla dives into the optional features, from the language support like the HLASM Toolkit to data management tools like DFSORT
Articlesz/OS and Friends: A Rich Heritage of Built-in Functions, From Nucleus to Networking
February 4, 2025
Veteran mainframer Joe Gulla catalogs the base elements of z/OS, starting with the essential services of the Base Control Program
ArticlesHow Mainframe Architecture Makes All the Difference: Then and Now
January 3, 2025
Former IBM Systems magazine contributor Joseph Gulla returns as a TechChannel contributor to explain the nuances of mainframe architecture
Articles5 Modern Technologies for IBM Z ‘Optimization’
December 11, 2024
Kyndryl’s Pat Stanard and Brenno Oliveira explore the tools that are enhancing the mainframe’s capabilities and demonstrating the community’s commitment to innovation
Press ReleasesZowe’s Long Term Support V3 Release Announced by Open Mainframe Project
October 10, 2024
Zowe increases product durability, stability and security with the support of a large open-source community and a conformance program