Search results
Results From The WOW.Com Content Network
Early mainframe printers were usually line printers. Line printers provide a limited set of commands to control how the paper is advanced when print lines are printed. The application writing reports, list, etc. to be printed has to include those commands in the print data. These single character print commands are called printer control ...
Multiple Virtual Storage, more commonly called 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.
On May 17, 1983, IBM announced [5] MVS/370 Data Facility Product (MVS/370 DFP), 5665-295, for MVS/SP Version 1 Release 3, replacing [b] the same five programs as DFP for MVS/XA. On February 5, 1985, IBM announced [ 6 ] MVS/XA Data Facility Product (MVS/XA DFP) Version 2, 5655-XA2, as a replacement for MVS/XA Data Facility Product Version 1 ...
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.
Line commands (which apply only to specific line(s)) such as copy, move, repeat, insert, exclude, delete, text flow, text split are entered by over-typing the line number fields with a one or two character code representing the command to be applied at that line followed by an optional number which further modifies the supplied command.
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 ...
As it is an assembly language, BAL uses the native instruction set of the IBM mainframe architecture on which it runs, System/360, just as the successors to BAL use the native instruction sets of the IBM mainframe architectures on which they run, including System/360, System/370, System/370-XA, ESA/370, ESA/390, and z/Architecture.
With the introduction of MVS in 1974, IBM made it a standard component of their top-end mainframe operating system. TSO/E ("Time Sharing Option/Extensions") is a set of extensions to the original TSO. TSO/E is a base element of z/OS.