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IDMS
The Integrated Database Management System (IDMS) is a network model (CODASYL) database management system for mainframes. It was first developed at B.F. Goodrich and later marketed by Cullinane Database Systems (renamed Cullinet in 1983). Since 1989 the product has been owned by Computer Associates (now CA Technologies), who renamed it Advantage CA-IDMS and later simply to CA IDMS. History The roots of IDMS go back to the pioneering database management system called Integrated Data Store (IDS), developed at General Electric by a team led by Charles Bachman and first released in 1964. In the early 1960s IDS was taken from its original form, by the computer group of the B.F. Goodrich Chemical Division, and re-written in a language called Intermediate System Language (ISL). ISL was designed as a portable system programming language able to produce code for a variety of target machines. Since ISL was actually written in ISL, it was able to be ported to other machine architectu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cullinet
Cullinet was a software company whose products included the database management system IDMS and the integrated software package Goldengate. In 1989, the company was bought by Computer Associates. Cullinet was headquartered at 400 Blue Hill Drive in Westwood, Massachusetts. History Early years The company was started by John Cullinane and Larry English in 1968 as Cullinane Corporation. Their idea was to sell pre-packaged software to mainframe users, which was at that time a new concept in an era when enterprises only used internally developed applications or the software that came bundled with the hardware. Rather than write its own products, Cullinane approached IT (information technology) departments (at that time called Data Processing departments) of major enterprises, particularly banks, to identify internally developed applications that he felt had potential to be productized and licensed to others. However, it proved difficult to sell these applications because most wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Computers Limited
International Computers Limited (ICL) was a British computer hardware, computer software and computer services company that operated from 1968 until 2002. It was formed through a merger of International Computers and Tabulators (ICT), English Electric Computers (EEC) and Elliott Automation in 1968. The company's most successful product line was the ICL 2900 Series range of mainframe computers. In later years, ICL diversified its product line but the bulk of its profits always came from its mainframe customers. New ventures included marketing a range of powerful IBM clones made by Fujitsu, various minicomputer and personal computer ranges and (more successfully) a range of retail point-of-sale equipment and back-office software. Although it had significant sales overseas, ICL's mainframe business was dominated by large contracts from the UK public sector, including Post Office Ltd, the Inland Revenue, the Department for Work and Pensions and the Ministry of Defence. It als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CA Technologies
CA Technologies, formerly known as CA, Inc. and Computer Associates International, Inc., is an American multinational corporation headquartered in New York City. It is primarily known for its business-to-business (B2B) software with a product portfolio focused on Agile software development, DevOps, and computer security software spanning across a wide range of environments such as a mainframe, distributed computing, cloud computing, and mobile devices. The company markets nearly 200 software products. Some of the best-known are ACF2 (security), TopSecret (security), Datacom (database), Easytrieve (report generator), IDMS (database), InterTest (debugging), Librarian, Panvalet (source code library management), and TLMS (tape library management). Through 2018, CA Technologies maintained offices in more than 40 countries and employed approximately 11,300 people. CA holds more than 1,500 patents worldwide, and has more than 900 patent applications pending. It was headquartered on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CODASYL
CODASYL, the Conference/Committee on Data Systems Languages, was a consortium formed in 1959 to guide the development of a standard programming language that could be used on many computers. This effort led to the development of the programming language COBOL, the CODASYL Data Model, and other technical standards. CODASYL's members were individuals from industry and government involved in data processing activity. Its larger goal was to promote more effective data systems analysis, design, and implementation. The organization published specifications for various languages over the years, handing these over to official standards bodies ( ISO, ANSI, or their predecessors) for formal standardization. History CODASYL is remembered almost entirely for two activities: its work on the development of the COBOL language and its activities in standardizing database interfaces. It also worked on a wide range of other topics, including end-user form interfaces and operating system con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Integrated Data Store
Integrated Data Store (IDS) was an early network database management system largely used by industry, known for its high performance. IDS became the basis for the CODASYL Data Base Task Group standards. IDS was designed in the 1960s at the computer division of General Electric (which later became Honeywell Information Systems) by Charles Bachman, who received the Turing Award from the Association for Computing Machinery for its creation, in 1973. The software was released in 1964 for the GE 235 computer. By 1965, a network version for the customer Weyerhaeuser Lumber was in operation. IDS/II, introduced in 1975, was a . At this time the original version was labeled IDS/I. It was not easy to use or implement applications with IDS, because it was designed to maximize performance using the hardware available at that time. However, that weakness was equally its strength because skilful implementations of IDS-type databases, such as British Telecom's huge CSS project (an I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Associates
CA Technologies, formerly known as CA, Inc. and Computer Associates International, Inc., is an American multinational corporation headquartered in New York City. It is primarily known for its business-to-business (B2B) software with a product portfolio focused on Agile software development, DevOps, and computer security software spanning across a wide range of environments such as a mainframe, distributed computing, cloud computing, and mobile devices. The company markets nearly 200 software products. Some of the best-known are ACF2 (security), TopSecret (security), Datacom (database), Easytrieve (report generator), IDMS (database), InterTest (debugging), Librarian, Panvalet (source code library management), and TLMS (tape library management). Through 2018, CA Technologies maintained offices in more than 40 countries and employed approximately 11,300 people. CA holds more than 1,500 patents worldwide, and has more than 900 patent applications pending. It was headquartered on L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Database Management System
In computing, a database is an organized collection of data stored and accessed electronically. Small databases can be stored on a file system, while large databases are hosted on computer clusters or cloud storage. The design of databases spans formal techniques and practical considerations, including data modeling, efficient data representation and storage, query languages, security and privacy of sensitive data, and distributed computing issues, including supporting concurrent access and fault tolerance. A database management system (DBMS) is the software that interacts with end users, applications, and the database itself to capture and analyze the data. The DBMS software additionally encompasses the core facilities provided to administer the database. The sum total of the database, the DBMS and the associated applications can be referred to as a database system. Often the term "database" is also used loosely to refer to any of the DBMS, the database system or a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Bachman
Charles William Bachman III (December 11, 1924 – July 13, 2017) was an American computer scientist, who spent his entire career as an industrial researcher, developer, and manager rather than in academia. He was particularly known for his work in the early development of database management systems. His techniques of layered architecture include his namesake Bachman diagrams. Biography Charles Bachman was born in Manhattan, Kansas, in 1924, where his father, Charles Bachman Jr., was the head football coach at Kansas State College. He attended high school in East Lansing, Michigan, where his father served as head football coach at Michigan State College from 1933-1946. In World War II he joined the United States Army and spent March 1944 through February 1946 in the South West Pacific Theater serving in the Anti-Aircraft Artillery Corps in New Guinea, Australia, and the Philippine Islands. There he was first exposed to and used fire control computers for aiming 90&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network Model
The network model is a database model conceived as a flexible way of representing objects and their relationships. Its distinguishing feature is that the schema, viewed as a graph in which object types are nodes and relationship types are arcs, is not restricted to being a hierarchy or lattice. The network model was adopted by the CODASYL Data Base Task Group in 1969 and underwent a major update in 1971. It is sometimes known as the CODASYL model for this reason. A number of network database systems became popular on mainframe and minicomputers through the 1970s before being widely replaced by relational databases in the 1980s. Overview While the hierarchical database model structures data as a tree of records, with each record having one parent record and many children, the network model allows each record to have multiple parent and child records, forming a generalized graph structure. This property applies at two levels: the schema is a generalized graph of record types con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network Model
The network model is a database model conceived as a flexible way of representing objects and their relationships. Its distinguishing feature is that the schema, viewed as a graph in which object types are nodes and relationship types are arcs, is not restricted to being a hierarchy or lattice. The network model was adopted by the CODASYL Data Base Task Group in 1969 and underwent a major update in 1971. It is sometimes known as the CODASYL model for this reason. A number of network database systems became popular on mainframe and minicomputers through the 1970s before being widely replaced by relational databases in the 1980s. Overview While the hierarchical database model structures data as a tree of records, with each record having one parent record and many children, the network model allows each record to have multiple parent and child records, forming a generalized graph structure. This property applies at two levels: the schema is a generalized graph of record types con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Z/VSE
VSEn (''Virtual Storage Extended'') is an operating system for IBM mainframe computers, the latest one in the DOS/360 lineage, which originated in 1965. DOS/VSE was introduced in 1979 as a successor to DOS/VS; in turn, DOS/VSE was succeeded by VSE/SP version 1 in 1983, and VSE/SP version 2 in 1985. In February 2005, IBM announced z/VSE as successor to VSE/ESA 2.7, which was named to reflect the new System z branding for IBM's mainframe product line. In June 2021, 21st Century Software Inc announced that it had licensed the z/VSE source code from IBM with the intention of developing new versions of the operating system. As part of this transfer, z/VSE was renamed to VSEn. It is less common than z/OS and is mostly used on smaller machines. In the late 1980s, there was a widespread perception among VSE customers that IBM was planning to discontinue VSE and migrate its customers to MVS instead, although IBM relented and agreed to continue to produce new versions of VSE. Overview DO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tesco
Tesco plc () is a British multinational groceries and general merchandise retailer headquartered in Welwyn Garden City, England. In 2011 it was the third-largest retailer in the world measured by gross revenues and the ninth-largest in the world measured by revenues. It has shops in Ireland, the United Kingdom, the Czech Republic, Hungary and Slovakia. It is the market leader of groceries in the UK (where it has a market share of around 28.4%). Tesco has expanded globally since the early 1990s, with operations in 11 other countries in the world. The company pulled out of the US in 2013, but continues to see growth elsewhere. Since the 1960s, Tesco has diversified into areas such as the retailing of books, clothing, electronics, furniture, toys, petrol, software, financial services, telecoms and internet services. In the 1990s, Tesco re-positioned itself from being a downmarket high-volume low-cost retailer, attempting to attract a range of social groups with its low-cost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
