The operating system controlling a mainframe is much more secure than a PC or server operating system. All mainframe program changes originate from within, or near, the computer room.

Fujitsu has launched a new operating system designed to underline the long-term relevance of mainframes as the backbone of the digital world with more advanced, high availability, interoperability, ...

Software Enhancements To complement the z17, IBM introduced z/OS 3.2, its AI-optimized operating system that supports hybrid cloud integration, NoSQL databases, and hardware-accelerated AI processing.

Mainframes The first real operating system to be mentioned is GM-NAA I/O, which came about in the 1950s. This was intended for the IBM 704 mainframe.

October 04, 2006, 04:52 PM EDT mainframe computers, The IBM System z Mainframe Simplification program will marshal efforts across the company in the $100 million campaign, the company said Wednesday.

The development of time-sharing systems that allowed more than one program to run simultaneously led to more sophisticated operating systems that included scheduling, security and other services.