IBM mainframe operating systems

Extended Binary Coded Decimal Interchange Code (EBCDIC; ) is an eight-bit character encoding used mainly on IBM mainframe and IBM midrange computer operating systems. It descended from the code used with punched cards and the corresponding six-bit binary-coded decimal code used with most of IBM's computer peripherals of the late 1950s and early 1960s. It is supported by various non-IBM platforms, such as Fujitsu-Siemens' BS2000/OSD, OS-IV, MSP, and MSP-EX, the SDS Sigma series, Unisys VS/9, Unisys MCP and ICL VME.

Rexx (restructured extended executor) is a high-level programming language developed at IBM by Mike Cowlishaw. Both proprietary and open source Rexx interpreters exist for a wide range of computing platforms, and compilers exist for IBM mainframe computers. Rexx is used for scripting, application macros and application development. As a general purpose scripting language, Rexx is considered a precursor to Tcl and Python.

thumbnail|An IBM System Z10 mainframe computer on which z/OS can run.

scripting languages used on IBM mainframe operating systems to instruct the system on how to run a batch job or start a subsystem

Operating system for IBM S/360 and later mainframes

Multiple Virtual Storage (MVS) is the most commonly used operating system on the System/370, System/390 and IBM Z 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.

IBM CICS (Customer Information Control System) is a family of mixed-language application servers that provide online transaction management and connectivity for applications on IBM mainframe systems under z/OS and z/VSE.

IBM mainframe operating system designed for use with smaller machines

time-sharing environment for IBM mainframe operating system z/OS (and its predecessors)

OS/390 is an IBM operating system for the System/390 IBM mainframe computers.

IBM disk file storage access method

z/VM is the current version in IBM's VM family of virtual machine operating systems. First released in October 2000, z/VM remains in active use and development . It is directly based on technology and concepts dating back to the 1960s, particularly IBM's CP/CMS on the IBM System/360-67 (see article History of CP/CMS for historical details). z/VM runs on IBM's IBM Z family of computers and can support large numbers (thousands) of Linux virtual machines. (See Linux on IBM Z.)

In computing, Interactive System Productivity Facility (ISPF) 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. It includes a screen editor, the user interface of which was emulated by some microcomputer editors sold commercially starting in the late 1980s, including SPF/PC.

family of IBM virtual machine operating systems

IBM mainframe operating system, originally designed for smaller mainframes, successor to DOS/360

standard security product included in the z/OS operating system

IBM mainframe operating system used for transaction processing

CLIST (Command List; pronounced "C-List") is a procedural programming language for Time Sharing Option (TSO) in SVS and 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. In its basic form, a CLIST program is a list of commands to be executed in strict sequence (like a DOS batch file (*.bat) file). OS/VS2 R3.6 (MVS) added If-Then-Else logic and loop constructs to CLIST. The term CLIST is also used for command lists written by users of NetView.

operating system

secondary storage device

MUSIC/SP (Multi-User System for Interactive Computing/System Product; originally McGill University System for Interactive Computing) was developed at McGill University in the 1970s from an early IBM time-sharing system called RAX (Remote Access Computing System).

implementation of UNIX on the z/OS operating system

type of computer file existing on IBM mainframe operating systems

1956 operating system for IBM 704 computer

components of the z/OS operating system

component of the z/OS operating system