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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 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.
Program source files are normally saved in binary compressed format with tokens replacing keywords, with an option to save in ASCII text form. [6] The GW-BASIC command-line environment has commands to RUN, LOAD, SAVE, LIST the current program, or quit to the operating SYSTEM; these commands can also be used as program statements.
For many of the above uses, Active Scripting is an addition to Windows that is similar to the functionality of Unix shell scripts, as well as an incremental improvement upon batch files (command.com), Windows NT style shell scripts (cmd.exe) and, by way of VBScript, the replacement for QBasic, which was last available on the supplementary disc ...
Aims at full compatibility with Microsoft QBasic and QuickBASIC. BASIC code is translated to C++ and then compiled to executable form. An event driven GUI builder named InForm exists for QB64. [69] QBasic (DOS on the PC) – by Microsoft. Subset of QuickBASIC. Came with versions of MS-DOS from 5.0 to 6.22. Also included with DOS 7 (what Windows ...
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 ...
The successor to BASICA for MS-DOS and PC DOS versions, now discontinued, is QBasic, launched in 1991. It is a stripped-down version of the Microsoft QuickBASIC compiler: QBasic is an interpreter and cannot compile source files, while QuickBASIC can compile and save the programs in the .EXE executable file format.