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Transaction Processing Facility
Transaction Processing Facility (TPF) is an IBM real-time operating system for mainframe computers descended from the IBM System/360 family, including zSeries and System z9. TPF delivers fast, high-volume, high-throughput transaction processing, handling large, continuous loads of essentially simple transactions across large, geographically dispersed networks. While there are other industrial-strength transaction processing systems, notably IBM's own CICS and IMS, TPF's specialty is extreme volume, large numbers of concurrent users, and very fast response times. For example, it handles VISA credit card transaction processing during the peak holiday shopping season. The TPF passenger reservation application PARS, or its international version IPARS, is used by many airlines. ''PARS'' is an ''application program''; TPF is an operating system. One of TPF's major optional components is a high performance, specialized database facility called ''TPF Database Facility'' (TPFDF). A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airline Control Program
IBM Airline Control Program, or ACP, is a discontinued operating system developed by 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 mainframe computer family. This departed from the earlier model in which each airline had a different, machine-specific transaction system. Overview Development began with ''SABRE (Semi-Automatic Business Research Environment)'', ''Deltamatic'', and ''PANAMAC''. From these, the ''Programmed Airline Reservations System (PARS)'' was developed. In 1969 the control program, ''ACP'', was separated from PARS. PARS kept the functions for processing airline reservations and related data. In December 1979, ACP became known as ACP/TPF and then just TPF (Transaction Processing Facility). The transaction operating system became more widely implemented by businesses other than the major airlines, such as online credit car ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Closed Source
Proprietary software is software that grants its creator, publisher, or other rightsholder or rightsholder partner a legal monopoly by modern copyright and intellectual property law to exclude the recipient from freely sharing the software or modifying it, and—in some cases, as is the case with some patent-encumbered and EULA-bound software—from making use of the software on their own, thereby restricting their freedoms. Proprietary software is a subset of non-free software, a term defined in contrast to free and open-source software; non-commercial licenses such as CC BY-NC are not deemed proprietary, but are non-free. Proprietary software may either be closed-source software or source-available software. Types Origin Until the late 1960s, computers—especially large and expensive mainframe computers, machines in specially air-conditioned computer rooms—were usually leased to customers rather than sold. Service and all software available were usually supplie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Programmed Airline Reservations System
Programmed Airline Reservations System (PARS) is an IBM proprietary large scale airline reservation application, a computer reservations system, executing under the control of IBM Airline Control Program (ACP) (and later its successor, Transaction Processing Facility (TPF)). Its international version was known as ''IPARS''.Hobson S.J. "ALCS — A high-performance high-availability DB/DC monitor", 1989. By the 1960s, with the American Airlines SABRE reservations system up and running, IBM offered its expertise to other airlines, and soon developed Deltamatic for Delta Air Lines on the IBM 7074, and PANAMAC for Pan American World Airways using an IBM 7080. By 1967/8 IBM generalized its airline reservations work into the PARS system, which ran on the larger members of the IBM System/360 family and which could support the largest airlines' needs at that time (e.g. United Airlines ran about 3000 reservations terminals online in the 1972 timeframe). In the early 1970s IBM modifie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DXC Technology
DXC Technology Company is an American multinational information technology (IT) services and consulting company headquartered in Ashburn, Virginia. History DXC Technology was founded on April 3, 2017, through a merger between Hewlett Packard Enterprise’s Enterprise Services business unit and Computer Sciences Corporation. The company provided business-to-business IT services. It began trading on the New York Stock Exchange under the symbol DXC. At the time of its creation, DXC Technology had revenues of $25 billion, with 6,000 enterprise and public sector clients across 70 countries, managed by around 170,000 staff. In July 2017, the company started a three-year plan to reduce the number of offices in India from 50 to 26, and reduce headcount by 5.9% (around 10,000) employees. In 2018, DXC split off its US public sector segment to create a new company, Perspecta Inc. In June 2019, with about 43,000 employees in India and one of its largest delivery engines for applica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Express
American Express Company or Amex is an American bank holding company and multinational financial services corporation that specializes in payment card industry, payment cards. It is headquartered at 200 Vesey Street, also known as American Express Tower, in the Battery Park City neighborhood of Lower Manhattan. Amex is the fourth-largest card network globally based on purchase volume, behind China UnionPay, Visa Inc., Visa, and Mastercard. 141.2 million Amex cards were in force worldwide as of December 31, 2023, with an average annual spend per card member of US$24,059. That year, Amex handled over $1.7 trillion in purchase volume on its network. Amex is list of largest banks in the United States, the 16th largest US bank, with a total of US$270 billion in assets or 1.1% of all assets insured by the Federal Deposit Insurance Corporation, FDIC. It is ranked 77th on the Fortune 500, ''Fortune'' 500 and 28th on the list of the most valuable brands by ''Forbes''. In 2023, it was ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Airlines
American Airlines, Inc. is a major airlines of the United States, major airline in the United States headquartered in Fort Worth, Texas, within the Dallas–Fort Worth metroplex, and is the Largest airlines in the world, largest airline in the world in terms of passengers carried and daily flights. American, along with its regional subsidiaries and contractors operating under the brand name American Eagle (airline brand), American Eagle, operate an extensive international and domestic network with almost 6,800 flights per day to nearly 350 destinations in 48 countries. The airline is also a founding member of the Oneworld alliance, one of the world's three major airline alliances. American Airlines and American Eagle operate out of ten hubs, with Dallas/Fort Worth International Airport (DFW) being the largest. The airline serves more than 200 million passengers annually, and averages more than 500,000 daily. , the company employs 103,440 staff members. History American Air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sabre (computer System)
Sabre Global Distribution System is a computer reservation system, travel reservation system owned by Sabre Corporation, which allows travel agents and companies to search, price, book, and ticket travel services provided by airlines, hotels, car rental companies, rail providers and tour operators. Originally developed by American Airlines under CEO C.R. Smith with the assistance of IBM in 1960, the booking service became available for use by external travel agents in 1976 and became independent of the airline in March 2000. Overview The system's parent company is organized into three business units: *Sabre Travel Network: global distribution system *Sabre Airline Solutions: airline technology *Sabre Hospitality Solutions: hotel technology solutions Sabre is headquartered in Southlake, Texas, and has many employees in various locations around the world. History The name of the computer reservation system is an abbreviation for "Semi-automated Business Research Environment", and wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GNU Compiler Collection
The GNU Compiler Collection (GCC) is a collection of compilers from the GNU Project that support various programming languages, Computer architecture, hardware architectures, and operating systems. The Free Software Foundation (FSF) distributes GCC as free software under the GNU General Public License (GNU GPL). GCC is a key component of the GNU toolchain which is used for most projects related to GNU and the Linux kernel. With roughly 15 million lines of code in 2019, GCC is one of the largest free programs in existence. It has played an important role in the growth of free software, as both a tool and an example. When it was first released in 1987 by Richard Stallman, GCC 1.0 was named the GNU C Compiler since it only handled the C (programming language), C programming language. It was extended to compile C++ in December of that year. Compiler#Front end, Front ends were later developed for Objective-C, Objective-C++, Fortran, Ada (programming language), Ada, Go (programming la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computerworld
''Computerworld'' (abbreviated as CW) is a computer magazine published since 1967 aimed at information technology (IT) and Business computing, business technology professionals. Original a print magazine, ''Computerworld'' published its final print issue in 2014; since then, it has been available as an online news website and as an online magazine. As a printed weekly during the 1970s and into the 1980s, ''Computerworld'' was the leading trade publication in the data processing industry. Based on circulation and revenue it was one of the most successful trade publications in any industry. Later in the 1980s it began to lose its dominant position. It is published in many countries around the world under the same or similar names. Each country's version of ''Computerworld'' includes original content and is managed independently. The publisher of ''Computerworld'', Foundry (formerly IDG Communications), is a subsidiary of International Data Group. History The publication was lau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Programming Language
A programming language is a system of notation for writing computer programs. Programming languages are described in terms of their Syntax (programming languages), syntax (form) and semantics (computer science), semantics (meaning), usually defined by a formal language. Languages usually provide features such as a type system, Variable (computer science), variables, and mechanisms for Exception handling (programming), error handling. An Programming language implementation, implementation of a programming language is required in order to Execution (computing), execute programs, namely an Interpreter (computing), interpreter or a compiler. An interpreter directly executes the source code, while a compiler produces an executable program. Computer architecture has strongly influenced the design of programming languages, with the most common type (imperative languages—which implement operations in a specified order) developed to perform well on the popular von Neumann architecture. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Assembly Language
In computing, assembly language (alternatively assembler language or symbolic machine code), often referred to simply as assembly and commonly abbreviated as ASM or asm, is any low-level programming language with a very strong correspondence between the instructions in the language and the architecture's machine code instructions. Assembly language usually has one statement per machine instruction (1:1), but constants, comments, assembler directives, symbolic labels of, e.g., memory locations, registers, and macros are generally also supported. The first assembly code in which a language is used to represent machine code instructions is found in Kathleen and Andrew Donald Booth's 1947 work, ''Coding for A.R.C.''. Assembly code is converted into executable machine code by a utility program referred to as an '' assembler''. The term "assembler" is generally attributed to Wilkes, Wheeler and Gill in their 1951 book '' The Preparation of Programs for an Electronic Dig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
