IBM has introduced a release of its z/OS mainframe operating system with new features that increase the system’s security for online commerce and business transactions. IBM officials said the new operating system release is in line with what the company has been calling the renaissance of the mainframe. And as mainframes run a vast portion of the world’s financial services, retail and other large businesses, security was a major concern for this latest release, IBM officials said, in Armonk, N.Y.
