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DBASE
dBase (also stylized dBASE) was one of the first database management systems for microcomputers and the most successful in its day. The dBase system included the core database engine, a query system, a Form (programming), forms engine, and a programming language that tied all of these components together. Originally released as Vulcan for PTDOS in 1978, the CP/M port caught the attention of Ashton-Tate in 1980. They licensed it, re-released it as dBASE II, and later ported it to IBM PC computers running DOS. On the PC platform in particular, dBase became one of the best-selling software titles for a number of years. A major upgrade was released as dBase III and ported to a wider variety of platforms, including UNIX and OpenVMS, VMS. By the mid-1980s, Ashton-Tate was one of the "big three" software publishers in the early business-software market, along with Lotus Development and WordPerfect. Starting in the mid-1980s, several companies produced their own variations on the dBase ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ashton-Tate
Ashton-Tate Corporation was a US-based software company best known for developing the popular dBASE database application and later acquiring Framework from the Forefront Corporation and MultiMate from Multimate International. It grew from a small garage-based company to become a multinational corporation. Once one of the "Big Three" software companies, which included Microsoft and Lotus, the company stumbled in the late 1980s and was sold to Borland in September 1991. History The history of Ashton-Tate and dBASE are intertwined and as such, must be discussed in parallel. Early history: dBASE II (1981–1983) In 1978, Martin Marietta programmer Wayne Ratliff wrote Vulcan, a database application, to help him make picks for football pools. Written in Intel 8080 assembly language, it ran on the CP/M operating system and was modeled on JPLDIS, a Univac 1108 program used at JPL and written by fellow programmer Jeb Long. Ashton-Tate was launched as a result of Georg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
XBase
xBase is the generic term for all programming languages that derive from the original dBASE (Ashton-Tate) programming language and database formats. These are sometimes informally known as dBASE "clones". While there was a non-commercial predecessor to the Ashton-Tate product (Vulcan written by Wayne Ratliff), most clones are based on Ashton-Tate's 1986 dBASE III+ release — scripts written in the dBASE III+ dialect are most likely to run on all the clones. History of the X Ashton-Tate always maintained that everything relating to dBASE was proprietary, and as a result, filed lawsuits against several of the "clone" software vendors. One effect of this action was to cause the clone vendors to avoid using the term "dBASE": a trademark term held by Ashton-Tate. This gave rise to the creation of the generic term "xBase" meaning "dBASE or dBASE-like." A suggested name that narrowly failed was "*base" (pronounced "star base" and an Homage (arts), homage to Vulcan and ''Star Trek'') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RETRIEVE
RETRIEVE is a database management system (DBMS) offered on Tymshare's systems starting in August 1971. It was written in Tymshare's own FORTRAN, SUPER FORTRAN on the SDS 940. It offered basic single-file, non-relational database, relational database functionality using an interactive programming language. It is one of the earliest examples of software as a service (SaaS). RETRIEVE was highly influential and spawned a number of relatively direct clones. Wang Laboratories's RECALL on the Wang 2200 minicomputer was almost identical to RETRIEVE, to the point the differences were detailed in a single page. Jet Propulsion Laboratory, JPL made a version known as Jet Propulsion Laboratory Display Information System, JPLDIS for the UNIVAC 1108 in 1973 that was also very similar. Wayne Ratliff, a contractor at JPL for many years, was inspired by JPLDIS to port it to the IMSAI 8080 to manage his football pool, later releasing it commercially as Vulcan for CP/M in 1979. Ashton-Tate licensed Vu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borland
Borland Software Corporation was a computing technology company founded in 1983 by Niels Jensen, Ole Henriksen, Mogens Glad, and Philippe Kahn. Its main business was developing and selling software development and software deployment products. Borland was first headquartered in Scotts Valley, California, then in Cupertino, California, and then in Austin, Texas. In 2009, the company became a full subsidiary of the British firm Micro Focus International plc. In 2023, Micro Focus (including Borland) was acquired by Canadian firm OpenText, which later absorbed Borland's portfolio into its application delivery management division. History The 1980s: Foundations Borland Ltd. was founded in August 1981 by three Danes, Danish citizens Niels Jensen, Ole Henriksen, and Mogens Glad to develop products like Word Index for the CP/M operating system using an off-the-shelf company. However, the response to the company's products at the CP/M-82 show in San Francisco showed that a U.S. company ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Database Management Systems
In computing, a database is an organized collection of data or a type of data store based on the use of a database management system (DBMS), the software that interacts with end users, applications, and the database itself to capture and analyze the data. The DBMS 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 an application associated with the database. Before digital storage and retrieval of data have become widespread, index cards were used for data storage in a wide range of applications and environments: in the home to record and store recipes, shopping lists, contact information and other organizational data; in business to record presentation notes, project research and notes, and contact information; in schools as flash card ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JPLDIS
The Jet Propulsion Laboratory Display Information System (or JPLDIS) is a file management program written in FORTRAN. JPLDIS is important because it was the inspiration and precursor to dBASE, arguably one of the most influential DBMS programs for early microcomputers. History In the late 1960s, Fred Thompson at the Jet Propulsion Laboratory (JPL) of the California Institute of Technology (Caltech) was using a Tymshare product named RETRIEVE to manage a database of electronic calculators. In 1971 Fred collaborated with Jack Hatfield, a programmer at JPL, to write an enhanced version of RETRIEVE which became the JPLDIS project. JPLDIS evolved into a file management program written in FORTRAN, running on a UNIVAC 1108 mainframe. Hatfield published two papers entitled "Jet Propulsion Laboratory Data Information System (JPLDIS)". The first paper was presented to the Univac Users Group in Dallas, TX (Feb. 1973) and the second paper was presented to the National Science Foundation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clipper (programming Language)
Clipper is an xBase compiler that implements a variant of the ''xBase'' computer programming language. It is used to create or extend software programs that originally ran usually on DOS. Although it is a powerful general-purpose programming language, it was used mainly to create database business programs. One major dBase feature not implemented in Clipper is the dBase#Interactivity, dot-prompt (. prompt) interactive command set, which was an important part of the original dBase implementation. Clipper, from Nantucket Corp and later Computer Associates, started out as a native code compiler for dBase III databases, and later evolved. History Clipper was created by Nantucket Corporation, a company that was started in 1984 by Barry ReBell (management) and Brian Russell (technical). Larry Heimendinger was Nantucket's president. In 1992, the company was sold to Computer Associates for 190 million dollars and the product was renamed to CA-Clipper. Clipper was created as a replaceme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FoxPro
FoxPro is a text-based (computing), text-based Procedural programming, procedurally oriented programming language and database management system (DBMS), and it is also an object-oriented programming language, originally published by Fox Software and later by Microsoft, for MS-DOS, Windows, Macintosh, and UNIX. The final published release of FoxPro was 2.6. Development continued under the Visual FoxPro label, which in turn was discontinued in 2007. Description FoxPro was derived from FoxBase (Fox Software, Perrysburg, Ohio), which was in turn derived from dBase III (Ashton-Tate) and dBase II. FoxPro is both a DBMS and a relational database management system (RDBMS), since it extensively supports multiple relationships between multiple .dbf files (tables). However, it lacks support for Transaction processing, transactional processing. FoxPro was sold and supported by Microsoft after they acquired Fox Software in its entirety in 1992. At that time there was an active worldwid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM PC
The IBM Personal Computer (model 5150, commonly known as the IBM PC) is the first microcomputer released in the List of IBM Personal Computer models, IBM PC model line and the basis for the IBM PC compatible ''de facto'' standard. Released on August 12, 1981, it was created by a team of engineers and designers at IBM, International Business Machines (IBM), directed by William C. Lowe and Philip Don Estridge in Boca Raton, Florida. Powered by an x86-architecture Intel 8088 processor, the machine was based on open architecture and third-party peripherals. Over time, expansion cards and software technology increased to support it. The PC had influence of the IBM PC on the personal computer market, a substantial influence on the personal computer market; the specifications of the IBM PC became one of the most popular computer design standards in the world. The only significant competition it faced from a non-compatible platform throughout the 1980s was from Apple Inc., Apple's Maci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UNIX
Unix (, ; trademarked as UNIX) is a family of multitasking, multi-user computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. Initially intended for use inside the Bell System, AT&T licensed Unix to outside parties in the late 1970s, leading to a variety of both academic and commercial Unix variants from vendors including University of California, Berkeley ( BSD), Microsoft (Xenix), Sun Microsystems ( SunOS/ Solaris), HP/ HPE ( HP-UX), and IBM ( AIX). The early versions of Unix—which are retrospectively referred to as " Research Unix"—ran on computers such as the PDP-11 and VAX; Unix was commonly used on minicomputers and mainframes from the 1970s onwards. It distinguished itself from its predecessors as the first portable operating system: almost the entire operating system is written in the C programming language (in 1973), which allows U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenVMS
OpenVMS, often referred to as just VMS, is a multi-user, multiprocessing and virtual memory-based operating system. It is designed to support time-sharing, batch processing, transaction processing and workstation applications. Customers using OpenVMS include banks and financial services, hospitals and healthcare, telecommunications operators, network information services, and industrial manufacturers. During the 1990s and 2000s, there were approximately half a million VMS systems in operation worldwide. It was first announced by Digital Equipment Corporation (DEC) as VAX/VMS (''Virtual Address eXtension/Virtual Memory System'') alongside the VAX-11/780 minicomputer in 1977. OpenVMS has subsequently been ported to run on DEC Alpha systems, the Itanium-based HPE Integrity Servers, and select x86-64 hardware and hypervisors. Since 2014, OpenVMS is developed and supported by VMS Software Inc. (VSI). OpenVMS offers high availability through computer cluster, clustering—the ability t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperative Programming
In computer science, imperative programming is a programming paradigm of software that uses Statement (computer science), statements that change a program's state (computer science), state. In much the same way that the imperative mood in natural languages expresses commands, an imperative program consists of command (computing), commands for the computer to perform. Imperative programming focuses on describing ''how'' a program operates step by step (with general order of the steps being determined in source code by the placement of statements one below the other), rather than on high-level descriptions of its expected results. The term is often used in contrast to declarative programming, which focuses on ''what'' the program should accomplish without specifying all the details of ''how'' the program should achieve the result. Procedural programming Procedural programming is a type of imperative programming in which the program is built from one or more procedures (also termed s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
