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IBM 8100 DPCX
DPCX (Distributed Processing Control eXecutive) was an operating system for the IBM 8100 small computer system. IBM
IBM
hoped it would help their installed base of IBM
IBM
3790 customers migrate to the 8100 and the DPPX operating system. It was mainly deployed to support a word processing system, Distributed Office Support Facility (DOSF) which was derived from the earlier IBM
IBM
3730 word processing system. Like DPPX, it was written in the PL/S-like PL/DS language
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Operating System
An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. Time-sharing
Time-sharing
operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, printing, and other resources. For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between programs and the computer hardware,[1][2] although the application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it
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IBM 5520
The IBM
IBM
5520 Administrative System was a text and data processing system, announced by IBM
IBM
General Systems Division (GSD) in 1979.[1] The system offered linked text-editing work stations that shared a storage unit a central processor unit, CRT-based display stations (IBM 5253 and 5254), a daisy wheel printer ( IBM
IBM
5257) and an ink jet printer ( IBM
IBM
5258). Depending on the model, from one to 18 display stations and from three to 12 printers could be attached. Other systems, i.e
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OS/390
OS/390 is an IBM operating system for the System/390
System/390
IBM mainframe computers. OS/390 was introduced in late 1995 in an effort, led by the late Randy Stelman, to simplify the packaging and ordering for the key, entitled elements needed to complete a fully functional MVS operating system package
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MVS
Multiple Virtual Storage, more commonly called MVS, was the most commonly used operating system on the System/370
System/370
and System/390
System/390
IBM mainframe computers. It was developed by IBM, but is unrelated to IBM's other mainframe operating systems, e.g., VSE, VM, TPF. First released in 1974, MVS was extended by program products with new names multiple times:first to MVS/SE (MVS/System Extensions),[NB 1] next to MVS/SP (MVS/System Product) Version 1, next to MVS/XA (MVS/eXtended Architecture), next to MVS/ESA (MVS/Enterprise Systems Architecture), then to OS/390 and finally to z/OS (when 64-bit support was added with the zSeries models)
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OS/VS1
Operating System/Virtual Storage 1, or OS/VS1, is a discontinued IBM mainframe computer operating system designed to be run on IBM System/370
System/370
hardware. It was the successor to the Multiprogramming with a Fixed number of Tasks (MFT) option of System/360's operating system OS/360. OS/VS1, in comparison to its predecessor, supported virtual memory (then called virtual storage).[1] OS/VS1 was generally available during the 1970s and 1980s, and it is no longer supported by IBM.Contents1 Description 2 Remote Entry Services (RES) 3 IBM
IBM
upgrades 4 Time-sharing4.1 Conversational Remote Job Entry 4.2 TONE for VS15 ReferencesDescription[edit] OS/VS1 was OS/360 MFT II
MFT II
with a single virtual address space; by comparison, OS/VS2 SVS was OS/360 MVT with a single virtual address space
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IBM 8100
The IBM
IBM
8100 Information System, announced Oct. 3, 1978, [1][2] was at one time IBM’s principal distributed processing engine, providing local processing capability under two incompatible operating systems (DPPX and DPCX) and was follow-on to IBM
IBM
3790. The 8100, when used with the Distributed Programming Processing Executive (DPPX), was intended to provide turnkey distributed processing capabilities in a centrally controlled and managed network. It never saw much success—one anonymous source, according to PC Magazine, called it a "boat anchor"[3]—and became moribund when host-based networks went out of fashion
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VSE (operating System)
z/VSE (Virtual Storage Extended) is an operating system for IBM mainframe computers, the latest one in the DOS/360 lineage, which originated in 1965. It is less common than prominent z/OS and is mostly used on smaller machines. Primary z/VSE development occurs in IBM's Böblingen
Böblingen
labs in Germany.Contents1 Overview 2 Older z/VSE versions 3 See also 4 References 5 External linksOverview[edit] DOS/360 originally supported 24-bit addressing. As the underlying hardware evolved, VSE/ESA acquired support for 31-bit addressing. IBM released z/VSE Version 4 in 2007. z/VSE Version 4 requires 64-bit z/Architecture hardware and supports 64-bit real mode addressing. With z/VSE 5.1 (available since 2011) z/VSE introduced 64 bit virtual addressing and memory objects (chunks of virtual storage), that are allocated above 2 GB
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SRTOS
Special
Special
Real Time Operating System (SRTOS) is a discontinued IBM
IBM
real time operating system, originally designed for use in the electricity industry, but later also applied in other areas of industrial process control.[1][2][3] It formed part of the Realtime Plant Management System (RPMS) and Advanced Control System (ACS).[3][4] Rather than a standalone operating system, it was designed as an extension to the OS/VS1 and OS/VS2 (later MVS) operating systems.[1][4] It was also used in the paper industry.[5] SRTOS was originally released in 1976,[1] but continued to be used through the 1980s. References[edit]^ a b c IBM
IBM
System/370 Special
Special
Real Time Operating System Programming RPQ Z06751 Description and Operation Manual (PDF). IBM. November 1984. Retrieved 2016-09-24.  ^ Mini/Micro Northeast conference record. Electronics Conventions. 1984
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IBM 4680 OS
FlexOS is a discontinued modular real-time multi-user multi-tasking operating system (RTOS) designed for computer-integrated manufacturing, laboratory, retail and financial markets
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History Of CP/CMS
This article covers the History of CP/CMS — the historical context in which this important IBM time-sharing virtual machine operating system was built. It provides details to support the main CP/CMS and History of IBM
History of IBM
articles, drawing on source material that is not readily available on-line. CP/CMS development occurred in a complex political and technical milieu. To understand the system's history, it is necessary to examine these broader forces. The following material summarizes major issues and events of the day from the perspective of CP/CMS development – a perspective that is somewhat different from (and orthogonal to) other ways of viewing the period
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Document Content Architecture
The Document Content Architecture, or DCA for short, is a standard developed by IBM
IBM
for text documents in the early 1980s. DCA was used on mainframe and iSeries systems, and formed the basis of DisplayWrite's file format
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IBM PL/S
PL/S, short for Programming Language/Systems, is a "machine-oriented" programming language based on PL/I. It was developed by IBM
IBM
in the late 1960s, under the name Basic Systems Language (BSL), as a replacement for assembly language on internal software projects; it included support for inline assembly and explicit control over register usage. Early projects using PL/S were the batch utility, IEHMOVE, and the Time Sharing Option of MVT, TSO. By the 1970s, IBM
IBM
was rewriting its flagship operating system in PL/S. Although users frequently asked IBM
IBM
to release PL/S for their use, IBM refused saying that the product was proprietary. Their concern was that open PL/S would give competitors, Amdahl, Itel (National Advanced Systems), Storage Technology Corporation, Trilogy Systems, Magnuson Computer Systems, Fujitsu, Hitachi, and other PCM vendors a competitive advantage
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SNADS
SNADS or Systems Network Architecture Distribution Services is an "asynchronous distribution service that can store data for delayed delivery."[1] SNADS uses SNA data links to allow messages and objects to be sent from system to system using the APPC protocol. It is a very robust service: once an object has been accepted by SNADS it will get to its destination. If the communication link is unavailable (down), the transmission will be held on the sending system until the link is available, at which time it is sent. If the transmission is interrupted, it will be resumed or re-sent once the communication problem is resolved. SNADS is available on several IBM systems, including the IBM System i, formerly known as AS/400 or System/38
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IBM
IBM
IBM
(International Business
Business
Machines Corporation) is an American multinational technology company headquartered in Armonk, New York, United States, with operations in over 170 countries. The company originated in 1911 as the Computing-Tabulating-Recording Company
Computing-Tabulating-Recording Company
(CTR) and was renamed "International Business
Business
Machines" in 1924. IBM
IBM
manufactures and markets computer hardware, middleware and software, and provides hosting and consulting services in areas ranging from mainframe computers to nanotechnology. IBM
IBM
is also a major research organization, holding the record for most U.S
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IBM 3790
The IBM
IBM
3790 Communications System, developed by IBM's Data Processing Division (DPD), was announced in 1975. It was one of the first distributed computing platforms
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