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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] |
Airlines 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 c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Closed Source
Proprietary software is software that is deemed within the free and open-source software to be non-free because its creator, publisher, or other rightsholder or rightsholder partner exercises a legal monopoly afforded 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 his or her freedoms. It is often contrasted with open-source or free software. For this reason, it is also known as non-free software or closed-source software. Types Origin Until the late 1960s computers—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 supplied by manufacturers without separate charge until 1969. Computer vendors u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 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 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/OS/390/z/OS. However, the API it provides to applications is very similar to that on TPF, so applications written for TPF can run on ALCS with minimal modifications: typically fewer modifications than are required to move from one release of TPF ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amtrak
The National Railroad Passenger Corporation, Trade name, doing business as Amtrak () , is the national Passenger train, passenger railroad company of the United States. It operates inter-city rail service in 46 of the 48 contiguous United States, contiguous U.S. States and nine cities in Canada. ''Amtrak'' is a portmanteau of the words ''America'' and ''trak'', the latter itself a sensational spelling of ''track''. Founded in 1971 as a quasi-public corporation to operate many U.S. passenger rail routes, Amtrak receives a combination of state and federal subsidies but is managed as a for-profit corporation, for-profit organization. The United States federal government, through the United States Secretary of Transportation, Secretary of Transportation, owns all the company's Issued shares, issued and Shares outstanding, outstanding preferred stock. Amtrak's headquarters is located one block west of Washington Union Station, Union Station in Washington, D.C. Amtrak serves more th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DXC Technology
DXC Technology is an American multinational information technology (IT) services and consulting company headquartered in Ashburn, Virginia. History DXC Technology was founded on April 3, 2017 when the Hewlett Packard Enterprise Company (HPE) spun off its Enterprise Services business and merged it with Computer Sciences Corporation (CSC). At the time of its creation, DXC Technology had revenues of $25 billion, employed 170,000 people and operated in 70 countries. The spinoff from Hewlett Packard Enterprise did not include two parts of the Enterprise Services segment: the Mphasis Limited reporting unit and the ''Communications and Media Solutions'' product group. In India, the company started a three-year plan to reduce the number of offices in the country from 50 to 26, and reduce headcount by 5.9% (around 10,000) employees. With about 43,000 employees (more than a third of its workforce) in India, the company is restructuring its workforce to meet its new revenue profile. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Express
American Express Company (Amex) is an American multinational corporation specialized in payment card services headquartered at 200 Vesey Street in the Battery Park City neighborhood of Lower Manhattan in New York City. The company was founded in 1850 and is one of the 30 components of the Dow Jones Industrial Average. The company's logo, adopted in 1958, is a gladiator or centurion whose image appears on the company's well-known traveler's cheques, charge cards, and credit cards. During the 1980s, Amex invested in the brokerage industry, acquiring what became, in increments, Shearson Lehman Hutton and then divesting these into what became Smith Barney Shearson (owned by Primerica) and a revived Lehman Brothers. By 2008 neither the Shearson nor the Lehman name existed. In 2016, credit cards using the American Express network accounted for 22.9% of the total dollar volume of credit card transactions in the United States. , the company had 121.7million cards in force, includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Airlines
American Airlines is a major airlines of the United States, major US-based airline headquartered in Fort Worth, Texas, within the Dallas–Fort Worth metroplex. It is the Largest airlines in the world, largest airline in the world when measured by fleet size, scheduled passengers carried, and revenue passenger mile. American, together with its regional partners and affiliates, operates an extensive international and domestic network with almost 6,800 flights per day to nearly 350 destinations in more than 50 countries. American Airlines is a founding member of the Oneworld alliance, the third-largest airline alliance in the world. Regional service is operated by independent and subsidiary carriers under the brand name American Eagle (airline brand), American Eagle. American Airlines and American Eagle operate out of 10 hubs, with Dallas Fort Worth International Airport, Dallas/Fort Worth (DFW) being its largest. The airline handles more than 200 million passengers annually with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sabre (computer System)
Sabre Global Distribution System, owned by Sabre Corporation, is a travel reservation system used by 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 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 employees in various locations around the world. History The name of the travel reservation system is an abbreviation for "Semi-automated Business Research Environment", and was originally styled in all-capital letters as SABRE. It wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GNU Compiler Collection
The GNU Compiler Collection (GCC) is an optimizing compiler produced by the GNU Project supporting various programming languages, 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 and the standard compiler for most projects related to GNU and the Linux kernel. With roughly 15 million lines of code in 2019, GCC is one of the biggest 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. It was extended to compile C++ in December of that year. Front ends were later developed for Objective-C, Objective-C++, Fortran, Ada, D and Go, among others. The OpenMP and OpenACC specifications are also supported in the C and C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computerworld
''Computerworld'' (abbreviated as CW) is an ongoing decades old professional publication which in 2014 "went digital." Its audience is information technology (IT) and business technology professionals, and is available via a publication website and as a digital magazine. As a printed weekly during the 1970s and into the 1980s, ''Computerworld'' was the leading trade publication in the data processing industry. Indeed, 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 parent company of Computerworld US is IDG Communications. History The first issue was published in 1967. Going international The company IDG offers the brand "Computerworld" in 47 countries worldwide, the name and fre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Programming Language
A programming language is a system of notation for writing computer programs. Most programming languages are text-based formal languages, but they may also be graphical. They are a kind of computer language. The description of a programming language is usually split into the two components of syntax (form) and semantics (meaning), which are usually defined by a formal language. Some languages are defined by a specification document (for example, the C programming language is specified by an ISO Standard) while other languages (such as Perl) have a dominant implementation that is treated as a reference. Some languages have both, with the basic language defined by a standard and extensions taken from the dominant implementation being common. Programming language theory is the subfield of computer science that studies the design, implementation, analysis, characterization, and classification of programming languages. Definitions There are many considerations when defini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
