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QBasic is an integrated development environment (IDE) and interpreter for a variety of dialects of BASIC which are based on QuickBASIC. Code entered into the IDE is compiled to an intermediate representation (IR), and this IR is immediately executed on demand within the IDE.
A subset of QuickBASIC 4.5, named QBasic, was included with MS-DOS 5 and later versions, replacing the GW-BASIC included with previous versions of MS-DOS. Compared to QuickBASIC, QBasic is limited to an interpreter only, lacks a few functions, can only handle programs of a limited size, and lacks support for separate program modules.
QBasic maintained an active game development community, [42] [43] which helped later spawn the QB64 and FreeBASIC implementations. [44] An early example of this market is the QBasic software package Microsoft Game Shop (1990), a hobbyist-inspired release that included six "arcade-style" games that were easily customizable in QBasic. [45]
BASIC extensions See also References External links Dialects 0–9 1771-DB BASIC Allen-Bradley PLC industrial controller BASIC module; Intel BASIC-52 extended with PLC-specific calls. 64K BASIC Cross-platform, interactive, open-source interpreter for microcomputer BASIC. A ABasiC (Amiga) Relatively limited. Initially provided with Amiga computers by MetaComCo. ABC BASIC designed for the ABC 80 ...
QB64 was originally compiled with QuickBASIC 4.5. After significant development, Rob Galleon, the developer, became hindered by QuickBASIC's memory limitations and switched to Microsoft Basic PDS 7.1, which solved these problems for a short time. [5]
Microsoft Query is a visual method of creating database queries using examples based on a text string, the name of a document or a list of documents. The QBE system converts the user input into a formal database query using Structured Query Language (SQL) on the backend, allowing the user to perform powerful searches without having to explicitly compose them in SQL, and without even needing to ...
Visual Basic was developed by Microsoft for Windows, and is known for supporting rapid application development (RAD) of graphical user interface (GUI) applications, event-driven programming, and both consumption and development of components via the Component Object Model (COM) technology. VB was first released in 1991.
Nibbles was included with MS-DOS version 5.0 and above. Written in QBasic, it is one of the programs included as a demonstration of that programming language. [1] The QBasic game uses the standard 80x25 text screen to emulate an 80x50 grid by making clever use of foreground and background colors, and the ANSI characters for full blocks and half-height blocks.