z/OS

The Unique Benefits of z/OS-Native Database Systems

This is the first of two “z/OS and Friends” articles on database management systems. I am focused on z/OS because there are families of products, like the Db2 family, that run on different platforms, and because of platform differences, the products consume CPU cycles and utilize memory and storage in different ways. There are many […]

Not Merely Surviving, the Mainframe is Thriving as the Future of IT

NOVIPRO's Karoline Pierre has seen a lot on her personal journey from Brazil to Canada.

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A Rare Education: Budding Mainframers Prepare to Carry the Torch

Students at Northern Illinois University, one of the few in the U.S. offering mainframe instruction, prepare to carry the torch

z/OS and Friends: IMS Transaction Manager and Database Manager Support Tens of Thousands of Transactions a Second

This comprehensive overview highlights the exceptional performance and reliability of IMS, explains the hierarchical database model, details the various types of IMS databases and more

z/OS and Friends: Rich Functionality Is What CICS Is All About—Then and Now

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

z/OS and Friends: CICS Changing With the Times While Serving Longstanding Applications

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

z/OS and Friends: What Is the JES Programming Dimension and Why Is It Important?

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"

The Return of the Prodigal Mainframer

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

z/OS and Friends: JES—One of the Most Important Base Elements of z/OS

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

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