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Like QuickBASIC, but unlike earlier versions of Microsoft BASIC, QBasic is a structured programming language, supporting constructs such as subroutines. [2] Line numbers , a concept often associated with BASIC, are supported for compatibility, but are not considered good form, having been replaced by descriptive line labels . [ 1 ]
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.
This mode has its own proprietary packet encapsulation format which, whilst being easy to use with QBasic, meant that it could only be used to communicate with other QB64 programs or server backends with custom interfaces created specifically for the application. Later versions add GET# and PUT# to read and write raw bytes from the stream. This ...
In MS-DOS 5, there are four sample QBASIC programs, Gorilla, Nibbles, Money and RemLines. The first two are games, the last two are utilities, for managing money, and removing line numbers from GWBasic code. MSHerc is a utility to be loaded before QBASIC to allow QBasic to write to the screen.
BASIC (Beginners' All-purpose Symbolic Instruction Code) [1] is a family of general-purpose, high-level programming languages designed for ease of use. The original version was created by John G. Kemeny and Thomas E. Kurtz at Dartmouth College in 1963.
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.
Microsoft's QBASIC, BASICA, and GW-BASIC all feature a PLAY statement which takes a string argument in the SMX format. [ 19 ] [ 20 ] [ 21 ] The name "Music Macro Language" may originate with GW-BASIC, which provided a facility "to play music by embedding a music macro language into the string data type". [ 22 ]
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 ...