Big Blue is to release z/OS, its z900 mainframe operating system upgraded to take advantage of the new model's 64-bit design.

IBM z/OS mainframe operating system gets AI, cloud infusion with software coming Sept. 29.

The new z/OS operating system was originally detailed last fall, when IBM introduced its z900 line of mainframes supporting up to 16 64-bit processors. The software is IBM’s first 64-bit ...

Mainframe computing continues to be central to enterprises despite the success of cloud computing. IBM z/OS 2.5 could make mainframes even more valuable, the company says.

Unisys announced today that it plans next year to phase out the use of its CMOS mainframe processor in favor of Intel-based Xeon chips.

Big Blue is dropping customer support for the mainframe operating system OS/390 version 2.10 at the end of September and is urging customers to upgrade to z/OS version 1.4.

IBM updated its z/OS operating system, adding AI optimization and quantum-focused features to its z17 mainframe. Update z/OS 3.2 brings features originally previewed by IBM in April, including AI ...

Most notably, IBM has been rolling out IBM Wazi Developer for Red Hat CodeReady Workspaces, a cloud-native development experience for its venerable z/OS mainframe operating system.

CA Technologies announced 'day one' support for IBM's next generation z/OS V1.13 across its line of mainframe management software solutions, including CA Mainframe Chorus and CA Mainframe Software ...

The Linux Foundation's Open Mainframe Project is targeting the development of mainframe applications and skill sets, and now has its own Big Iron to work with.

IBM points to Microsoft with playing a role in the dispute over mainframe software and services.