renamed OS/VS2 SVS, for Single Virtual Storage, when OS/VS2 Release 2, also known as MVS, for Multiple Virtual Storage, was introduced. SVS was intended...
74 KB (6,798 words) - 02:57, 5 April 2025
(SVS) refers to Release 1 of Operating System/Virtual Storage 2 (OS/VS2); it is the successor system to the MVT option of Operating System/360. OS/VS2...
11 KB (1,522 words) - 16:37, 29 June 2023
MVS (redirect from OS/VS2 (MVS))
jobs. OS/VS1 is OS/360 MFT within a single virtual address space; OS/VS2 SVS was OS/360 MVT within a single virtual address space. So OS/VS1 and SVS in principle...
49 KB (5,945 words) - 15:26, 4 February 2025
Storage 2 (OS/VS2) is the successor operating system to OS/360 MVT in the OS/360 family. SVS refers to OS/VS2 Release 1 MVS refers to OS/VS2 Release 2...
286 bytes (77 words) - 19:22, 31 December 2021
environment for IBM mainframe operating systems, including OS/360 MVT, OS/VS2 (SVS), MVS, OS/390, and z/OS. In computing, time-sharing is a design technique that...
6 KB (831 words) - 22:14, 3 May 2025
released what it described as OS/VS2 Release 2 but which is a major rewrite that was upwards-compatible with the earlier OS/VS2 SVS. The new system's most noticeable...
51 KB (5,935 words) - 20:24, 25 May 2025
SVS may refer to: Advanced Space Vision System, a computer vision system for the ISS OS/VS2 (SVS), a precursor of MVS ScanScope Virtual Slide, a medical...
1 KB (156 words) - 17:50, 22 August 2024
(SysGen) is a two-stage process for installing or updating OS/360, OS/VS1, OS/VS2 (SVS), OS/VS2 (MVS) and chargeable systems derived from them. There are...
10 KB (918 words) - 20:13, 8 February 2024
Comparison of operating systems (redirect from OS comparison)
of this article the terms used are; kernel In some operating systems, the OS is split into a low level region called the kernel and higher level code that...
80 KB (1,734 words) - 19:15, 24 May 2025
System/Virtual Storage 1 (OS/VS1) Operating System/Virtual Storage 2 R1 (OS/VS2 SVS) PRIMOS (written in FORTRAN IV, that didn't have pointers, while later...
70 KB (3,408 words) - 22:36, 18 May 2025
other than the first System/370 models; the OS/VS1 variant of OS/360 MFT, the OS/VS2 (SVS) variant of OS/360 MVT, and the DOS/VS variant of DOS/360 were...
16 KB (1,805 words) - 13:50, 1 May 2025
virtual memory. However, some older operating systems (such as OS/VS1 and OS/VS2 SVS) and even modern ones (such as IBM i) are single address space operating...
43 KB (5,334 words) - 11:47, 24 May 2025
IBM. OS/VS1 was OS/360 MFT II with a single virtual address space; by comparison, OS/VS2 SVS was OS/360 MVT with a single virtual address space. OS/VS1...
10 KB (883 words) - 08:43, 16 September 2024
z/VSE for another mainframe operating system Starting with the earliest: OS/VS2 Release 2 through Release 3.8 MVS/System Extensions (MVS/SE) MVS/System...
20 KB (2,256 words) - 15:54, 28 February 2025
are standard in the final ASP version, version 3, as is support for OS/VS2 (SVS). With the introduction of MVS for System/370 IBM rewrote and renamed...
4 KB (509 words) - 15:26, 1 January 2023
releases of OS/360 included only MFT and MVT. For the System/370 and later machines, MFT evolved into OS/VS1, while MVT evolved into OS/VS2 (SVS) (Single...
83 KB (8,931 words) - 04:31, 25 May 2025
g., GCOS, OS/360 Attached Support Processor (ASP) in OS/360 and OS/VS2 (SVS). Houston Automatic Spooling Priority (HASP) in OS/360 and SVS, prominent...
10 KB (1,203 words) - 20:31, 30 May 2025
releases, and are still available to this day. In OS/VS1, OS/VS2 (SVS), MVS/370 and subsequent versions of the OS, the MODESET function (SVC 107) obviated the...
16 KB (2,229 words) - 17:09, 22 November 2022
device (DASD) file storage access method, first used in the OS/VS1, OS/VS2 Release 1 (SVS) and Release 2 (MVS) operating systems, later used throughout...
13 KB (1,535 words) - 22:31, 11 March 2025
List of operating systems (redirect from List of OS)
handshaking OS/VS2 (Operating System/Virtual Storage 2, Virtual-memory version of OS/360 MVT) OS/VS2 R1 (Called Single Virtual Storage (SVS), Virtual-memory...
73 KB (8,384 words) - 05:38, 30 May 2025
Modification Level 1. IBM (September 1976). OS/VS2 HASP II Version 4 User's Guide Program Number 370H-TX-001 VS2 SVS Release 1.7 (PDF). First Edition. GC27-0052-0...
16 KB (1,729 words) - 16:50, 26 May 2025
which runs all processes within a large address space, and IBM OS/VS1 and OS/VS2 (SVS), which ran all jobs in a single 16MiB virtual address space. Paged...
11 KB (1,334 words) - 18:13, 26 February 2025
IBM System/370 (redirect from OS/VS)
with virtual storage), OS/VS1 (OS/360 MFT with virtual storage), OS/VS2 (OS/360 MVT with virtual storage) Release 1, termed SVS (Single Virtual Storage)...
99 KB (7,314 words) - 19:41, 25 May 2025
works. A hypervisor was included, which allowed OS/370 VS1 or VS2 (SVS or MVS) to be run as a "guest" OS under ACP itself. The end-user documentation, which...
5 KB (376 words) - 22:32, 18 August 2023
BISYNC "Appendix B MULTI-LEAVING" (PDF). OS/VS2 HASP II Version 4 Logic - Program Number 370H-TX-001 VS2 - SVS Release 1.7 (PDF) (First ed.). IBM. September...
14 KB (1,536 words) - 19:38, 28 August 2024
VM/XA versions ⇶ VM/ESA ⇶ z/VM VP/CSS TSS/360 OS/360 MVT-TSO ⇶ OS/VS2 SVS-TSO ⇶ MVS-TSO ⇶ OS/390-TSO ⇶ z/OS-TSO Transactional systems: CICS, TPF ⇶ z/TPF...
20 KB (838 words) - 14:28, 18 December 2024
MVS API. IBM originally provided GCS in order to run VTAM without a service OS/VS1 virtual machine and VTAM Communications Network Application (VCNA). RSCS...
52 KB (5,816 words) - 08:43, 22 March 2025
System/360 (OS/360), IBM's flagship operating system for S/360 and early S/370 OS/VS1, successor to OS/360 MFT SVS, OS/VS2 Release 1, successor to OS/360 MVT...
3 KB (446 words) - 13:30, 30 April 2025
first release of the OS/VS2 operating system for the IBM System 370 systems; that release later was known as Single Virtual Storage (SVS). In 1974 IBM announced...
16 KB (1,857 words) - 11:12, 23 June 2024
with virtual storage), OS/VS1 (OS/360 MFT with virtual storage), OS/VS2 Release 1 (OS/360 MVT with virtual storage), termed SVS (Single Virtual Storage)...
7 KB (668 words) - 09:09, 12 May 2024