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Command CICS
Command CICS or Command-CICS is a software product that allows organizations to migrate from "Macro level" CICS to "Command level" CICS without any re-programming so that companies could migrate to later versions of CICS that did not support macro level application programs. The later versions of CICS offered many advantages over previous versions yet tens of thousands of application programs were effectively locked out of the new version unless they were prepared to operate two completely different versions of CICS on the same Operating Systems, creating both operational and maintenance problems. Two different, simultaneous, CICS Licenses were also required. History When CICS was first released by IBM in the late 1960s, it used IBM Assembler macros to generate the API system calls to the CICS teleprocessing monitor Kernel (operating system), kernel. This was also true even if programs were written in COBOL or PL/1. Ken Dakin an independent programmer and CEO of APT Ltd. in the U.K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MVS/XA
Multiple Virtual Storage, more commonly called MVS, was the most commonly used operating system on the System/370 and System/390 IBM mainframe computers. IBM developed MVS, along with OS/VS1 and SVS, as a successor to OS/360. It is unrelated to IBM's other mainframe operating system lines, e.g., VSE, VM, TPF. Overview First released in 1974, MVS was extended by program products with new names multiple times: * first to MVS/SE (MVS/System Extensions),some print media used the singular, MVS/System Extension: Computerworld, 15 Dec 1980 - Page 5; 26 June 1978 - Page 8 * next to MVS/SP (MVS/System Product) Version 1, * next to MVS/XA (MVS/eXtended Architecture), * next to MVS/ESA (MVS/Enterprise Systems Architecture), * then to OS/390 and * finally to z/OS (when 64-bit support was added with the zSeries models). IBM added UNIX support (originally called OpenEdition MVS) in MVS/SP V4.3 and has obtained POSIX and UNIX™ certifications at several different levels from IEEE, X ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
