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CLIST (Command List) (pronounced "C-List") is a procedural programming language for TSO in MVS systems. It originated in OS/360 Release 20 and has assumed a secondary role since the availability of Rexx in TSO/E Version 2. The term CLIST is also used for command lists written by users of NetView. [1]
An IBM System Z10 mainframe computer on which z/OS can run. z/OS is a 64-bit operating system for IBM z/Architecture mainframes, introduced by IBM in October 2000. [2] It derives from and is the successor to OS/390, which in turn was preceded by a string of MVS versions.
In computing, Interactive System Productivity Facility (ISPF) [1] is a software product for many historic IBM mainframe operating systems and currently the z/OS and z/VM operating systems that run on IBM mainframes.
All modern IBM mainframe operating systems except z/TPF are descendants of those included in the "System/370 Advanced Functions" announcement – z/TPF is a descendant of ACP, the system which IBM initially developed to support high-volume airline reservations applications.
OS/390 is an IBM operating system for the System/390 IBM mainframe computers. [1] Overview
RACF (IBM's mainframe security software product) – Sysplex-wide RVARY and SETROPTS commands; PDSE file sharing; Multisystem VLFNOTE, SDUMP, SLIP, DAE; Resource Measurement Facility (RMF) – Sysplex-wide reporting; CICS – uses XCF to provide better performance and response time than using VTAM for transaction routing and function shipping.
CLIST is the original scripting language for TSO on large IBM mainframes; IBM later added it to, e.g., NetView. While it is still supported, use dropped with the availability of REXX in those environments. There is a lot of Rexx activity in the PC world, but not nearly as much as in the mainframe world.
A mainframe computer, informally called a mainframe or big iron, [1] is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing.