Language  -  BASIC

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OSS: BASIC XL / XE & Tools

OSS: BASIC XE v4.1

:Publisher	Optimized Systems Software Inc.
:Programmer	Bill Wilkinson

:Release Year	1985
:Format	16 KB ROM Cartridge

:Description	Enhanced Atari BASIC Programming Language
:Modules	Interpreter / Editor

BASIC XE v4.1

BASIC XE Extension

BASIC XE

OSS: BASIC XL v1.03

:Publisher	Optimized Systems Software Inc.
:Programmer	Bill Wilkinson

:Release Year	1983
:Format	16 KB ROM Cartridge

:Description	Enhanced Atari BASIC Programming Language
:Modules	Interpreter / Editor

BASIC XL v1.03

BASIC XL Manual

BASIC XL Tutorial

OSS: BASIC XL ToolKit

:Publisher	Optimized Systems Software Inc.
:Programmer	Bill Wilkinson

:Release Year	1984
:Format	DOS 2.x Floppy Disk

:Description	BASIC XL Enhancements & Tools
:Modules	Extensions & Runtime

BASIC XL ToolKit (S1)

BASIC XL ToolKit (S2)

BASIC XL ToolKit

Happy-Computer: Turbo-BASIC & Tools

Happy-Computer: Turbo-BASIC XL v1.5 (Disk)

:Publisher	Happy-Computer Magazine
:Programmer	Frank Ostrowski

:Release Year	1985
:Format	DOS 2.x Floppy Disk

:Description	Enhanced Atari BASIC Programming Language
:Modules	Interpreter / Editor, Compiler, Runtime, Linker, & DOS

Turbo-BASIC XL v1.5 (PAL)

Turbo-BASIC XL v1.5 (NTSC)

Turbo-BASIC XL Expanded Docs

Happy-Computer: Turbo-BASIC XL v1.5 (ROM)

:Publisher	Happy-Computer Magazine
:Programmer	Frank Ostrowski

:Release Year	1985 / 2012
:Format	256KB ROM/Flash Cartridge (SIC Cartridge)

:Description	Enhanced Atari BASIC Programming Language
:Modules	Interpreter / Editor, Compiler, Runtime, Linker, & DOS

Turbo-BASIC XL v1.5

Happy-Computer: Turbo-BASIC XL v1.5 (Cassette)

:Publisher	Happy-Computer Magazine
:Programmer	Frank Ostrowski

:Release Year	1985
:Format	Data Cassette

:Description	Enhanced Atari BASIC Programming Language
:Modules	Interpreter / Editor

Turbo-BASIC XL v1.5

Jiri Richter: Turbo-BASIC XL v2.11 (Turbo 2000)

:Publisher	Jiri Richter
:Programmers	Frank Ostrowski & Jiri Richter

:Release Year	1988
:Format	Binary Load File

:Description	Enhanced Atari BASIC Language for Turbo 2000 Cassette System
:Modules	Interpreter / Editor

Turbo-BASIC XL v2.11

Torsten Karwoth: Turbo-BASIC XL Extension

:Publisher	Torsten Karwoth
:Programmer	Torsten Karwoth

:Release Year	1988
:Format	DOS 2.x Floppy Disk

:Description	Turbo-BASIC XL Language Extensions
:Modules	P/M Graphics, Blitter, Events, Extended RAM, etc.

Turbo-BASIC XL Extension

Happy-Computer: Turbo-BASIC v1.4

:Publisher	Happy-Computer Magazine
:Programmer	Frank Ostrowski

:Release Year	1985
:Format	DOS 2.x Floppy Disk

:Description	Enhanced Atari BASIC Language for 400 / 800
:Modules	Interpreter / Editor

Turbo-BASIC v1.4

CTH: Turbo-BASIC v3.2q

:Publisher	CTH Enterprises
:Programmers	Frank Ostrowski & Tom Hunt

:Release Year	1992
:Format	Binary Load File

:Description	Enhanced Atari BASIC Language for SpartaDOS v3.2
:Modules	Interpreter / Editor & P:R: Connection Handler

Turbo-BASIC v3.2q

Atari: BASIC

Atari: BASIC - Revisions A, B, & C

:Publisher	Atari Inc.
:Programmers	Shepardson Microsystems Inc.

:Release Dates	1979 - 84
:Format	8 KB ROM Cartridge

:Description	BASIC Programming Language
:Modules	Interpreter / Editor

Atari BASIC Rev. A

Atari BASIC Rev. B

Atari BASIC Rev. C

Atari BASIC

Atari BASIC Rev. A

Atari BASIC Rev. B

Atari BASIC Rev. C

Daniel Serpell: FastBASIC

Daniel Serpell: FastBASIC v4.7

:Publisher	Daniel Serpell
:Programmer	Daniel Serpell

:Release Year	2025
:Format	BW-DOS Disk

:Description	Advanced BASIC Programming Language System
:Modules	Interpreter, Compiler, Editor, & Demos

FastBASIC v4.7 (Github.com)

FastBASIC v4.7 (Cross Compiler)

Avery Lee: Altirra BASIC

Avery Lee: Altirra BASIC v1.59

:Publisher	Avery Lee
:Programmer	Avery Lee

:Release Year	2024
:Format	8 KB ROM Cartridge & Binary Load File

:Description	Atari BASIC Programming Language Replacement
:Modules	Interpreter / Editor

Altirra BASIC v1.59

Altirra BASIC v1.59

Altirra BASIC (2018-08-12)

Alpha Systems: BASIC TurboCharger

Alpha Systems: BASIC TurboCharger (ML Subroutines)

:Publisher	Alpha Systems
:Programmer	Jeff Bader

:Release Year	1987
:Format	DOS 2.x Floppy Disk

:Description	BASIC Machine Language Subroutines
:Modules	ML Subroutines

BASIC TurboCharger Program Disk (S1)

BASIC TurboCharger Program Disk (S2)

BASIC TurboCharger

Alpha Systems: BASIC TurboCharger (Source Code)

:Publisher	Alpha Systems
:Programmer	Jeff Bader

:Release Year	1987
:Format	DOS 2.x Floppy Disks

:Description	Assembly Source Code to BASIC ML Subroutines
:Modules	Source Code

BASIC TurboCharger Source Disk 1 (S1)

BASIC TurboCharger Source Disk 1 (S2)

BASIC TurboCharger Source Disk 2 (S1)

BASIC TurboCharger Source Disk 2 (S2)

BASIC TurboCharger Source

MMG: BASIC Compiler

MMG: BASIC Compiler v2.0

:Publisher	MMG Micro Software
:Programmers	Special Software Systems

:Release Year	1984
:Format	DOS 2.x Floppy Disk

:Description	Atari BASIC to Machine Language Compiler
:Modules	Compiler, Assembler, & Libraries

MMG BASIC Compiler v2.0

MMG BASIC Compiler

Monarch: ABC BASIC Compiler

Monarch: ABC BASIC Compiler v1.05

:Publisher	Monarch Data Systems
:Programmers	Monarch Data Systems

:Release Year	1987
:Format	DOS 2.x Floppy Disk

:Description	Atari BASIC to P-Code Compiler
:Modules	Compiler, Runtime, & Relocation Utility

ABC BASIC Compiler v1.05

ABC BASIC Compiler

Atari: Microsoft BASIC II

Atari: Microsoft BASIC II v2.0

:Publisher	Atari Inc.
:Programmers	Microsoft Corp.

:Release Year	1983
:Format	16 KB ROM Cartridge & Binary Load File

:Description	Atari Version of Microsoft BASIC Programming Language
:Modules	Interpreter & Extensions

Atari Microsoft BASIC II v2.0

Atari Microsoft BASIC II Extension

Atari Microsoft BASIC II v2.0

Atari Microsoft BASIC II Manual

Atari Microsoft BASIC II Guide

Atari Microsoft BASIC II Quick Reference