East Lansing Secretary of State Branch Office 400 Albert Ave. East Lansing, MI 48823
CentOS is a community-supported, free and open source operating system based on Red Hat Enterprise Linux. It exists to provide a free enterprise class computing platform and strives to maintain 100% binary compatibility with its upstream distribution. CentOS stands for Community ENTerprise Operating System. CentOS developers use Red Hatâs source code to create a final product very similar to Red Hat Enterprise Linux. CentOS is available free of charge. Technical support is primarily provided by the community via official mailing lists, web forums, and chat rooms.
MVS, OS/390, z/OS operating system. MVS (Multiple Virtual Storage) is the operating system which is developed by IBM in the sixties and supports POSIX. MVS was developed further from MVT operating system and extended by many functions like the use of virtual memory. It is used in IBM mainframes like the system /370 and system /390, needs low hardware requirements and convinces by a high stability in long-term operating mode.