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IBM Airline Control Program
IBM
IBM
AIRLINE CONTROL PROGRAM, or ACP, is a discontinued operating system developed by IBM
IBM
beginning about 1965. In contrast to previous airline transaction processing systems , the most notable aspect of ACP is that it was designed to run on most models of the IBM System/360
System/360
mainframe computer family. This departed from the earlier model in which each airline had a different, machine-specific transaction system. Development began with SABRE (Semi-Automatic Business Research Environment), Deltamatic, and PANAMAC. From these Programmed Airline Reservations System (PARS) was developed. In 1969 the control program, ACP was separated from PARS; PARS keeping the functions for processing airline reservations and related data
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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. It was developed by Digital Research 's Flexible Automation Business Unit in Monterey , California since 1986 and was marketed since January 1987 as a reengineered derivation of Digital Research's Concurrent DOS
DOS
286 multiuser multitasking operating system. CONTENTS * 1 Overview * 2 Adaptations * 2.1 IBM
IBM
4680 OS * 2.2 IBM
IBM
and Toshiba 4690 OS * 2.3 Siemens
Siemens
S5-DOS/MT * 3 See also * 4 References OVERVIEW FlexOS was re-written in C (see also: Portable CP/M ) for higher portability across hardware platforms, and it featured very low interrupt latency and fast context switching
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ALCS Transaction Monitor
ALCS, which stands for AirLine Control System, is an application server that provides industrial-strength, online transaction management for mission-critical applications. ALCS is a transaction processing monitor for the IBM
IBM
System/360 , System/370 , ESA/390 , and zSeries mainframes. It is a variant of TPF specially designed to provide all the benefits of TPF (very high speed, high volume, and high availability in transaction processing) but with the advantages such as easier integration into the data center offered by running on a standard IBM
IBM
operating system platform. Like TPF, it is primarily used in the airline, hotel, and banking industries. Whereas TPF runs as a stand-alone OS, ALCS is designed to run as an application on top of MVS
MVS
/ OS/390 /z/OS
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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 IBM mainframe computers . It was developed by IBM
IBM
, but is unrelated to IBM's other mainframe operating systems, e.g., VSE , VM , TPF . First released in 1974, MVS
MVS
was extended by program products with new names multiple times: * first to MVS/SE (MVS/System Extensions), * 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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Hypervisor
A HYPERVISOR or VIRTUAL MACHINE MONITOR (VMM) is computer software, firmware or hardware that creates and runs virtual machines . A computer on which a hypervisor runs one or more virtual machines is called a host machine, and each virtual machine is called a guest machine. The hypervisor presents the guest operating systems with a virtual operating platform and manages the execution of the guest operating systems. Multiple instances of a variety of operating systems may share the virtualized hardware resources: for example, Linux
Linux
, Windows , and macOS instances can all run on a single physical x86 machine. This contrasts with operating-system-level virtualization , where all instances (usually called containers) must share a single kernel, though the guest operating systems can differ in user space , such as different Linux
Linux
distributions with the same kernel
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SRTOS
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 . It formed part of the Realtime Plant Management System (RPMS) and Advanced Control System (ACS). Rather than a standalone operating system, it was designed as an extension to the OS/VS1 and OS/VS2 (later MVS
MVS
) operating systems. It was also used in the paper industry. SRTOS was originally released in 1976, but continued to be used through the 1980s. REFERENCES * ^ A B C IBM
IBM
System/370 Special
Special
Real Time Operating System Programming RPQ Z06751 Description and Operation Manual (PDF). IBM
IBM
. November 1984. Retrieved 2016-09-24. * ^ Mini/Micro Northeast conference record
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Software Developer
A SOFTWARE DEVELOPER is a person concerned with facets of the software development process, including the research, design, programming , and testing of computer software . Other job titles which are often used with similar meanings are programmer , software analyst , and software engineer . According to developer Eric Sink, the differences between system design, software development , and programming are more apparent. Already in the current market place there can be found a segregation between programmers and developers, being that one who implements is not the same as the one who designs the class structure or hierarchy. Even more so that developers become software architects or systems architects , those who design the multi-leveled architecture or component interactions of a large software system. In a large company, there may be employees whose sole responsibility consists of only one of the phases above
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OS/390
OS/390 is an IBM operating system for the 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
MVS
operating system package
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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 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. A key theme is the politics of a long running feud at IBM, between time-sharing and batch processing exponents. Historical notes , below, provides supporting quotes and citations from first-hand observers
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IBM I
IBM
IBM
(INTERNATIONAL BUSINESS MACHINES CORPORATION) is an American multinational technology company headquartered in Armonk, New York , United States
United States
, with operations in over 170 countries. The company originated in 1911 as the 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 offers 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 patents generated by a business (as of 2017) for 24 consecutive years
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Sabre (computer System)
SABRE GLOBAL DISTRIBUTION SYSTEM, owned by Sabre Holdings , is used by travel agents around the world with more than 400 airlines, 220,000 hotels, 42 car rental brands, 38 rail providers and 17 cruise lines. The Sabre GDS enables companies such as American Airlines
American Airlines
, American Express , BCD Travel , Carlson Wagonlit Travel , Hogg Robinson Group (HRG), Expedia
Expedia
, Holiday Autos, Zuji , LastMinute , JetBlue
JetBlue
, GetThere and Travelocity to search, price, book, and ticket travel services provided by airlines, hotels, car rental companies, rail providers and tour operators. Sabre Holdings aggregates airlines, hotels, online and offline travel agents and travel buyers
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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
System/360
's operating system OS/360 . OS/VS1, in comparison to its predecessor, supported virtual memory (then called virtual storage). OS/VS1 was generally available during the 1970s and 1980s, and it is no longer supported by IBM. CONTENTS * 1 Description * 2 Remote Entry Services (RES) * 3 IBM
IBM
upgrades * 4 Time-sharing * 4.1 Conversational Remote Job Entry * 4.2 TONE for VS1 * 5 References DESCRIPTION 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
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Software Release Life Cycle
A SOFTWARE RELEASE LIFE CYCLE is the sum of the stages of development and maturity for a piece of computer software : ranging from its initial development to its eventual release, and including updated versions of the released version to help improve software or fix software bugs still present in the software. CONTENTS * 1 History * 2 Stages of development * 2.1 Pre-alpha * 2.2 Alpha * 2.3 Beta * 2.3.1 Open and closed beta * 2.4 Release candidate * 3 Release * 3.1 Release to manufacturing (RTM) * 3.2 General availability (GA) * 3.3 Release to web (RTW) * 4 Support * 4.1 End-of-life * 5 See also * 6 References * 7 Bibliography HISTORYUsage of the "alpha/beta" test terminology originated at IBM
IBM
. As long ago as the 1950s (and probably earlier), IBM
IBM
used similar terminology for their hardware development. "A" test was the verification of a new product before public announcement
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Mainframe Computer
MAINFRAME COMPUTERS (colloquially referred to as "big iron" ) are computers used primarily by large organizations for critical applications; bulk data processing, such as census , industry and consumer statistics, enterprise resource planning ; and transaction processing . They are larger and have more processing power than some other classes of computers: minicomputers , servers , workstations , and personal computers . The term originally referred to the large cabinets called "main frames" that housed the central processing unit and main memory of early computers. Later, the term was used to distinguish high-end commercial machines from less powerful units. Most large-scale computer system architectures were established in the 1960s, but continue to evolve. Mainframe computers are acting as servers
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Special
SPECIAL or SPECIALS may refer to: CONTENTS * 1 Music * 2 Film and television * 3 Other uses * 4 See also MUSIC * Special (album) , a 1992 album by Vesta Williams * "Special" (Garbage song) , 1998 * "Special" (Mew song) , 2005 * "Special" (Stephen Lynch song) , 2000 * The Specials
The Specials
, a British band * "Special", a song by Violent Femmes on The Blind Leading the Naked * "Special", a song on
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IBM
IBM
IBM
(INTERNATIONAL BUSINESS MACHINES CORPORATION) is an American multinational technology company headquartered in Armonk, New York , United States
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 offers 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 patents generated by a business (as of 2017) for 24 consecutive years
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