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An early version was called Structured Programming Facility (SPF) and introduced in SVS and MVS systems in 1974. [4] IBM chose the name because SPF was introduced about the same time as structured programming concepts. In 1979 IBM introduced a new version and a compatible product for CMS [5] under Virtual Machine Facility/370 Release 5.
SVC is a two byte instruction with the hexadecimal operation code 0A; the second byte of the instruction, the SVC number, indicates the specific request. [2] The SVC number can be any value from 0 to 255, with the particular SVC number being up to the implementer of the operating system, e.g. on IBM's MVS, SVC 3 is used to terminate a program, while on the UNIVAC VS/9 and Fujitsu BS2000 ...
The Job Entry Subsystem (JES) is a component of IBM's MVS (MVS/370 through z/OS) mainframe operating systems that is responsible for managing batch workloads. In modern times, there are two distinct implementations of the Job Entry System called JES2 and JES3.
CA-7 is a job scheduling / workflow automation software package sold by CA Technologies (formerly CA, Inc. and Computer Associates International, Inc.). [1] It is commonly used by banks [ 2 ] and other large enterprises with IBM mainframe IT computing platforms .
The second version was built for a PCI host system. It included 128 MB of dedicated memory as standard, and was still rated at 4.5 MIPS. The third version, referred to as a P/390E card (for Enhanced), included 256 MB of dedicated memory and was rated at 7 MIPS. It, too, was built for a PCI host system. There was an extremely rare (possibly only ...
[25]: 110 The Basic Assembler is a slightly more restricted version of System/360 Basic Assembler; [26] notably, symbols are restricted to four characters in length. This version is capable of running on a system with 4 KB memory, and macro support is limited to IOCS macros. The card versions are two-pass assemblers that only support card input ...
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