what mainframe computer is and how it works
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What are some examples of IBM Z in use today? IBM Z is used by 44 of the top 50 banks and all top 10 insurers worldwide, as well as a large number of government, healthcare, airline, and retail organizations and other companies that require the highest standards for performance, security, reliability, and availability.
IBM zSystems has its own architecture which is designed to work with huge caches, and it has instruction sets to handle enterprise workloads by using IBM’s own S/390x chip architecture. The S/390x architecture is supported by several popular Linux operating systems including SUSE, Red Hat, and Ubuntu, as well as a large number of open source applications.
IBM zSystems runs operating systems including z/OS, z/VM, z/VSE, z/TPF, and Linux. In fact, it is common for multiple operating systems to run on a single mainframe. LinuxONE is an IBM zSystems system that’s specifically dedicated to running Linux; this combines the benefits of the Linux OS with the capabilities and strengths of the mainframe like outstanding data security, availability, performance, efficiency, and cost savings.
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