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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).
CorVision keeps the information behind the Status Screen up-to-date so that it indicates the current state of the development process. The left hand side indicates specification tasks that need doing. The right hand side indicates generation tasks that need doing. Changes or Additions to Specification and what they cause changes to.
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 .
Basic4GL (B4GL; from Basic for openGL) is an interpreted, open source version of the BASIC programming language which features support for 3D computer graphics using OpenGL. While being interpreted, it is also able to compile programs on top of the virtual machine to produce standalone executable programs.
In the early 1990s, a new PC-based tool for developing LINC specifications was released, the LINC Development Assistant (LDA). LDA was written in a mixture of Smalltalk and C++ rather than the LINC 4GL (the latter of which was not intended to run on a personal computer). From version 17, it was intended that all development be done with LDA.
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. It was initially composed of five components:
SheerPower 4GL has several key features: It is free for hobbyists and non-profit organizations. Web scripting features make it fast and easy to develop dynamic web pages using SheerPower's BASIC-like syntax. [3] Version 5.0 was the official release containing the syntax and logic for web scripting in SheerPower.
The main feature of the LANSA environment is the 'RDML / RDMLX' language–which is classified as a 4GL (4th generation language). [1] RDML closely follows the syntax of IBM CL or Control Language. CL is the "scripting language" equivalent of the OS/400 operating system. In recent years RDML has been extended to become RDMLX. This new version ...