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A fourth-generation programming language (4GL) is a high-level computer programming language that belongs to a class of languages envisioned as an advancement upon third-generation programming languages (3GL).
Informix-4GL is a 4GL programming language developed by Informix during the mid-1980s. [ 1 ] [ 2 ] [ 3 ] At the time of its initial release in 1986, supported platforms included Microsoft Xenix (on IBM PC AT ), DEC Ultrix (running on Microvax II , VAX-11/750 , VAX-11/785 , VAX 8600 ), Altos 2086 , AT&T 3B2 , AT&T 3B5, AT&T 3B20 and AT&T Unix PC .
LINC was originally developed by two New Zealand computer programmers (Gil Simpson [1] and Peter Hoskins) while working in Saudi Arabia in the early 1980s. It was first developed exclusively for operation with a single model of Burroughs computer system comprising a totally integrated system of:
PowerHouse is a byte-compiled fourth-generation programming language (or 4GL) originally produced by Quasar Corporation (later renamed Cognos Incorporated) for the Hewlett-Packard HP3000 mini-computer, as well as Data General and DEC VAX/VMS systems.
NOMAD is a relational database and fourth-generation language (4GL), originally developed in the 1970s by time-sharing vendor National CSS. While it is still in use today, its widest use was in the 1970s and 1980s. NOMAD supports both the relational and hierarchical database models. [1]
The language was called PROGRESS or Progress 4GL up until version 9, but in 2006, PSC changed the name to OpenEdge Advanced Business Language (OpenEdge ABL), in order to overcome a presumed industry perception that 4GLs were less capable than other languages.
OpenROAD, which stands for "Open Rapid Object Application Development", is a fourth-generation programming language (4GL) and development suite from Actian Corporation. It includes a suite of development tools, with built-in Integrated development environment (IDE) (Written in OpenROAD), and Code Repository.
SheerPower 4GL is a fourth-generation programming language developed by Touch Technologies, Inc. [1] SheerPower 4GL is the result of porting Touch Technologies' Intouch 4GL programming language that runs on OpenVMS (for DEC Alpha and VAX computers) to Windows, launching in 2000. Downloads are free from the official SheerPower 4GL website. [2]