S-100 bus machines) — Minimalist version which source code was smaller than this article, used on low-memory platforms. TML BASIC (Apple IIGS) — A compiled BASIC with a GUI hosted IDE for writing native GUI apps. TRS-80 Level I BASIC (TRS-80) — based on Tiny BASIC. TRS-80 Level II BASIC (Tandy / RadioShack TRS-80) — based on Microsoft BASIC TRS-80 Model 100 BASIC (TRS-80 Model 100) — based on Microsoft BASIC, with special support for the RAM file store, LCD display, and other built-in hardware of the TRS-80 Model 100 and Tandy 102 portable computers True BASIC (DOS, MS Windows, Mac OS, Linux, Unix) — Direct descendant of the original BASIC, Dartmouth BASIC, marketed by its creators. Strictly standards-compliant. Turbo Basic (Commodore 64) — Added 55 commands to the C64 BASIC, Released by Aztec Software, written by Julian Gardner. Turbo Basic (DOS on the PC) — Commercial compiler by Borland. (BASIC/Z successor) (see PowerBASIC) Turbo-Basic XL (Atari 8-bit family) — Freeware interpreter and compiler for the Atari 8-bit family — based on Atari BASIC. Even this "slow" interpreter was about four times faster than the built-in BASIC. Written by Frank Ostrowski, the person who would go on to develop GFA BASIC. Came from Happy Computer. TxBasic (Linux) Compiler and runtime compatible with Theos MultiUser Basic with extended features Tymshare SuperBasic (SDS 940)U UBASIC (DOS on the PC) — Interpreter with many mathematical routines. Strong emphasis on number theory. Can work with many-digit numbers, complex numbers. UniBASIC dialect that is part of the UniData database, with a strong focus on data access and manipulation. UniVerse dialect that is part of the UniVerse database, with strong focus on data access and manipulation. Uppsala-BASIC also known as METRIC-BASIC Utah BASIC Ellis Computing, had 12-digit precision and matrix operations. MS-DOS port of the Processor Technology 8K BASIC. See Nevada BASIC. V VAX BASIC DEC's BASIC-Plus-2 ported to VAX/VMS VBA See Visual Basic for Applications VBS See VBScript VBScript (a.k.a. VBS, Visual Basic Script, Visual Basic Scripting Edition) — A subset of Visual Basic used in ASP, Internet Explorer, or under Windows using the Windows Script Host (WSH) as a general-purpose scripting language. VBScript is often used as a replacement for DOS batch files. Vilnius BASIC (Elektronika BK-0010-01, BK-0011M and UKNC computers) Vintage BASIC Cross-platform, open-source interpreter for microcomputer BASIC, written in Haskell. Visual Basic (Windows) — Microsoft's object-oriented dialect with rapid application development environment.