3D Printer Files#

• SIO plug

Cassette#

• Boot from Cassette
• Atari Datasette XC12 Turbo 6000 Baud Interface
• Rambit Turbocharger for Atari Datarecorders
• CAS to WAV and WAV to CAS

Emulator#

• Altirra
• Atari800MacX
• Atari800
• Stella
• WineBottler
• PlayOnMac

Generic Information#

• Atari ATASCII Table
• Differences Atari 400/800 - 1200XL - 600/800XL
• Ironman Atari A compilation of advanced Atari 8-bit programming techniques
• Mode, Setcolor, Color Table
• Table of Modes and Screen Format
• Unleash the power of Ataris CPU

Graphics#

• Design Master Testbericht (German)
• Multi Player Animator (German)

Hardware#

Computer#

• Atari 400
• Atari 800
• Atari 1200XL
• Atari 800XL
• Atari 600XL
• Atari 130XE
• Atari 65XE
• Atari 800XE
• Atari XEGS

Disk Drives#

Atari#

• Atari 810
• Atari 815
• ATARI 1450XL HOME COMPUTER INTEGRAL DISK DRIVE SPECIFICATION
• Atari 1050
• Atari XF551

Third Party Drives#

• ASTRA 2001
• Indus GT
• Percom AT-88
• Rana 1000
• Trak AT-D2

Drive enhancements#

• Happy Computers Upgrades
• CompyShop Speedy Upgrades
• Turbo1050 Upgrades
• XF551 Indexlochabfrage - Indexhole Detection upgrade
• Custom Disk Format Routine (Atari 1050 with Compy Shop Speedy)
• Indus GT Field Service Manual* Indus GT Firmware ROM Source (Disassembly)
• Indus GT Schematics
• Floppy 2000
• HDI Interface (aka Floppy 3000)

Tape Recorder#

• ATARI 410
• ATARI 1010
• Bugfix for the Cassette Handler
• ATARI XC11
• ATARI XC12 = XCA12 = CA12
• ATARI XL12
• All about Cassette Tapes from 1979.pdf ; size: 741 KB

Printer#

• ATARI 820 40-column printer
• ATARI 822 Thermal Printer
• ATARI 825 Dot Matrix Printer
• ATARI 1020 Plotter
• ATARI 1025 Dot Matrix Printer
• ATARI 1027 Letter Quality Printer
• Atari 1027 Printer - OS Timeout Fix
• ATARI 1029 Dot Matrix Printer
• ATARI XMM801 Dot Matrix Printer
• ATARI XDM121 Daisy Wheel Printer

Modem#

• ATARI 830 Acoustic Modem
• ATARI 835 Direct connect Modem
• ATARI 1030
• Atari 1030 Modem with ModemLink Telecommunications Program
• ATARI XM301
• ATARI SX212
• Atari SX212 Modem

Interface#

• ATARI 850
• TransKey-II
• ARGS RS232 Cartridge (German)

Video Upgrades#

• XEP80
• Hercules Graphic Card inside the ARGS PBI-ISA Interface

Controller#

• Atari CX70 Light Pen
• Atari CX77 Touch Tablet
• Atari CX80 Trak-Ball controller
• Atari CX85 Numerical Keypad
• Trackball
• Multijoy Interface

Voicebox/Sprachbox#

• Atari Sprachbox (German)
• Sprachbox XL/XE

Cartridges#

• Blueprint of ACTION! Cart
• AtariMax EXEPACKER Files with bundled DOS
• ARGS RS232 Cartridge (deutsch)
• The!Card
• Cartridges

Other#

• ARGS ISA PC Interface
• ATARI 1450XL HOME COMPUTER INTEGRAL DISK DRIVE SPECIFICATION
• Bank Switching
• SDrive-MAX
• MicroUSB

History#

• The Atari FAQ
• The Atari Years
• Atari Historie
• Videospielgeschichten
• The 10 most important video games of all time

Literature#

• Books ; Mega-thanks to Atarimania for hosting
• Dealer Documents ; Mega-thanks to Atarimania for hosting
• Internal Documents ; Mega-thanks to Atarimania for hosting
• Manuals ; Mega-thanks to Atarimania for hosting
• Magazines ; Magazines which are either in current print or are now out of print
• Newsletters
• Other Documents ; Mega-thanks to Atarimania for hosting
• Press Kits ; Mega-thanks to Atarimania for hosting
• Technical Documents ; Mega-thanks to Atarimania for hosting

Newsletters#

PLATO (Programmed Logic for Automated Teaching Operation)#

Podcasts#

Preservation#

• Atari 8-bit Software Preservation Initiative
• KryoFlux Personal
• SuperCard Pro

Programming#

• Atari_8-Bit_Error-Codes.pdf ; Error-Codes for ACTION!, Atari Assembler Cartridge, Atari BASIC & OSS BASIC XL/XE, DOS or other Operating System, MAC/65 and Microsoft BASIC II
• ASCII-Tabelle
• DEZ-HEX-BIN-OKT-PEN (Excel 2016).xlsx ; Excel sheet for number conversions ; base conversions require Excel 2016
• OpCodes
• CIO Special Command Filter
• Atari Password

Rarity 10 and above up to impossible#

• Rarity 10

Related to Atari#

• Atari True Type Font for PC and Mac

Software#

Applications#

• Business
  1. Atari Timewise
  2. The Atari Accountant Series
  3. The Bookkeeper
  4. The Home Filing Manager
  5. Atari Home Accounting System

• Calculation & Graphics
  1. Atari Calculator
  2. Atari Graph It I & II
  3. Atari Home Finance
  4. Atari Investment Analysis Series
     1. Bond Analysis
     2. Mortgage & Loan Analysis
     3. Stock Analysis
     4. Stock Charting
  5. Atari Personal Financial Management System
  6. Atari Rechner Simulation mit UPN
  7. Atari Silent Butler
  8. Atari Statistics I
  9. Atari The Dow Jones Investment Evaluator
  10. Enhancements to Graph It
  11. Family Budgets
  12. Family Cash Flow
  13. Family Finances
  14. Home Inventory
  15. RPN Calculator

• Database
  1. Synapse SynFile
  2. AUSTRO.BASE

• Diagnostic
  1. Atari 400-800 Stand Alone System Test
  2. Super SALT
  3. ATARI Diagnostic Test Tape
  4. AUSTRO.RECOVER

• Education
  1. Atari Educational System-programming cassette streams
  2. Atari Educational System Lesson Cassettes
  3. Dorsett Educational System Lesson Cassettes
  4. An Invitation to Programming 1 CX4101
  5. An Invitation to Programming 2 CX4106
  6. An Invitation to Programming 3 CX4117

• Entertainment
  1. Atari Biorhythm CX4107
  2. Atari Biorhythm cassette-Dual Track with voice, music and data ; size: 21.3 MB ; MP4-file taken from Youtube
  3. Atari Hangman CX4108
  4. Atari Hangman cassette-Dual Track with voice, music and data ; size: 19.8 MB ; MP4-file taken from Youtube
  5. Video Easel CXL 4005

• Games
  1. Caverns of Mars CX8130
  2. Computer Chess CXL 4009
  3. Galaxian CXL4024

• Learning
  1. Atari Speed Reading CX4126
  2. Atari Touch Typing CX4110
  3. Conversational FRENCH CX4119
  4. Conversational GERMAN CX4118
  5. Conversational ITALIAN CX4125
  6. Conversational SPANISH CX4120
  7. My First Alphabet CX8135

• Music
  1. Music Composer CXL 4007
  2. Atari Music I
  3. Atari Music II
  4. Musica

• Remote Data Transfer
  1. ATARI Bildschirmtext (BTX)
  2. ATARI TELELINK II
  3. ATARI TELELINK I
  4. ATARI The Communicator II
  5. The Learning Phone
  6. AUSTRO.PHONE

• Simulation
  1. Atari Energy Czar CX4121
  2. Atari SCRAM-A Nuclear Power Plant Simulation CX4123
  3. Atari Kingdom CX4102
  4. Atari Kingdom cassette-Dual Track with voice, music and data ; size: 14.4 MB ; MP4-file taken from Youtube; main start from minute 1:10

• Spreadsheets
  1. BCALC
  2. Calc Magic
  3. VisiCalc
  4. SpeedCalc
  5. SynCalc

• Tools
  1. ATA MON DXG 5724

• Utilities
  1. Fixdump

• Word Processing
  1. Atari Word Processor
  2. Atari Writer
  3. Atari Proofreader
  4. Atari Schreiber
  5. The Writer's Tool
  6. AUSTRO.TEXT

Atari 8-bit Software Preservation Initiative#

Atari Boxes#

• Atari Boxes

Atari Learning System Software#

• Atari Learning System Software

Atari Program Exchange (APX) Software#

• Atari Program Exchange (APX) Software

ATARI Cartridge Serial Numbers#

• ATARI Cartridge Serial Numbers

ATARI Conversational Language Series#

• ATARI Conversational Language Series

Country Specific Atari Software#

France - P.E.C.F. Atari#

• Assembleur-Editeur (Cartridge: CXL 4003)
• Atari Logo (Cartridge: RX 8032)
• Ataritexte (Cartridge: RXF 8036)
• Atlas (Disk: APX 20055)
• Attaque! (Disk: APX 20072)
• Basic Microsoft Atari (Disk: AX 2025)
• Budget Familial (Disk: APX 20108)
• Cache-cache de mots (Cassette: APX 20140)
• Calcul Algébrique (Disk: DXF 54001, Cassette: TXF 53001)
• Caméléon (Disk: DXF 54016)
• Catalogue de disquettes (Disk: APX 20056)
• Centrale Nucléaire (Cassette: CX 4123)
• Chevalet Video (Cartridge: CXL 4005)
• Comment Compter (Disk: APX 20148, Cassette: APX 10148)
• Constructions electriques (Disk: APX 20215)
• Crocodile + Flip Flop (Disk: DT 2009, Cassette: DT 1009)
• Cubes (Cassette: APX 20101)
• Culture physique (Disk: APX 2003)
• Débogeur pour assembleur et macro-assembleur (Disk: DXF 54102)
• Descente à ski (Disk: APX 20063, Cassette: APX 10063)
• Des chiffres et des Lettres (Cartridge: RXF 52001)
• Drapeaux d'europe (Disk: APX 20149)
• Editeur de sons (Disk: APX 20018, Cassette: APX 10018)
• Extra-terrestres + Matuvu (Disk: DT 2011, Cassette: DT 1011)
• Fichier Larousse de 15 000 Mots (Disk: DT 2020)
• Front de l'est 1941 (Disk: APX 20050)
• Géographie (Disk: APX 20164)
• Gestion de données (Disk: APX 20059)
• Gestion Familiale (Disk: APX 20108)
• Gloup + Fleches (Disk: DT 2008, Cassette: DT 1008)
• Golf + Barre (Disk: DT 2010, Cassette: DT 1010)
• Graphe 1 (Disk: CX 4109)
• Graphe 2 (Disk: APX 20074)
• Géographie (Disk: APX 20164, Cassette: APX 10164)
• Hickory Dickory (Cassette: APX 10071)
• Initiation à la programmation en basic 1 (Cassette: CX 4101C)
• Initiation à la programmation en basic 2 (Cassette: CX 4106C)
• Initiation à la programmation en basic 3 (Cassette: CX 4117C)
• Insectivores + Concentration (Disk: DT 2012, Cassette: DT2012)
• Jeu du royaume (Cassette: CX 4102)
• Jouer du piano (Disk: APX 20062, Cassette: APX 10062)
• L'ampoule electrique (Disk: DXF 54002)
• L'énigme du triangle (Disk: DXF 54015)
• La boite à musique (Disk: APX 20182, Cassette: APX 10182)
• La chasse aux fautes + La course aux Hapax (Disk: DT 2006, Cassette: DT 1006)
• La gamme d'Agam (prototype)
• La quête du graal (Cassette: DT 1005)
• Les bonbons + Chaos (Disk: DT 2013, Cassette: DT 1013)
• Limonade (Disk: APX 20001, Cassette: APX 10001)
• Macro Assembleur (Disk: CX 8121)
• Mathematic-Tac-Toe (Disk: APX 20082, Cassette: APX 10082)
• Ministre de l'énergie (Cassette: CX 4121)
• Music Composer (Cartridge: CXL 4007)
• Nostradamus (Disk: DXF 54013)
• Promoteur (Disk: DXF 54017)
• Questions et réponses (Disk: APX 20081)
• Statistiques (Cassette: CX 4103)
• Super Biorythmes (Disk: DF 4001, Cassette: TF 4001)

Germany - Atari Deutschland GmbH#

• Business
  1. Terminkalender
  2. Buchhaltung
  3. Statistik I
  4. Graph It II
  5. Zinsen und Tilgung
  6. Familien Finanzen
  7. Haushalts-Buch
  8. Haushalts-Planung

• Datenbanken
  1. Artikelverwaltung
  2. Bundesligatabelle
  3. Diskettenbibliothek
  4. Karteikartenprogramm
  5. Vereinsverwaltung
  6. Sport-Lexikon

• Grafik
  1. Paint

• Lernen
  1. Tipp Trainer
  2. Städte und Länder
  3. Europäische Städte und Länder
  4. Rechtschreibtrainer

• Musik
  1. Music Composer
  2. Music I
  3. Music II

• Programmierhilfen
  1. Ataris Programmierhilfen-Diskette Nr.1
  2. Ataris Programmierhilfen-Diskette Nr.2
  3. Kurs 1: Programmieren leicht gemacht
  4. Kurs 2: Noch mehr BASIC
  5. Kurs 3: BASIC für Fortgeschrittene
  6. Super Sort

• Programmiersprachen
  1. Assembler/Editor
  2. Macro Assembler
  3. Mikrosoft Basic aka Microsoft Basic II
  4. Pascal
  5. Pilot
  6. Logo

• Spiele
  1. WWF-Club-Spiel
  2. fehler abc
  3. 747 Flug-Simulator
  4. Scram
  5. Karriere
  6. Yokyu II - Globetrotter
  7. Atlantis
  8. Nadral
  9. Time Bandit
  10. Cavelord
  11. Würfel - Kniffel
  12. Abenteuer im Weltraum
  13. Schloss des Grauens

• Spielend lernen mit Atari-Programmen
  1. Aufgepasst-Streit der Käfer
  2. Beeil Dich-Verdreht
  3. Bonbonglas-Chaos
  4. Golf-Balkenrechnen
  5. Schluck-Richtungspfeile
  6. Ufos-Blitzschnell
  7. Himmel Schreiber
  8. Buchstaben Lotterie

• Textverarbeitung
  1. Atari Schreiber
  2. Programm Text Editor

• Unterhaltung
  1. Biorhythmus
  2. Sprachbox
  3. Super Biorhythmus

• Utilities
  1. Disketten Betriebssystem II Version D2.0S
  2. Disketten Betriebssystem II Version 2.5
  3. Disk Fixer

Italy - Atari Italia S.p.A.#

The below broken links will be filled up with content in the future, meanwhile, please visit the incredible work from pioneers in that field:

• https://www.atarinside.com/blog/index.php/atari-italy/ ; thank you so much Marsupilami from AtariAge, that is of great help and an even more greater step for a better Europe. Thank you.
• https://www.santellocco.com/atari/biblioteca.htm ; Thank you so much Philsan from AtarAge, that is a major and giant leap to fully restore Atari Italy. Thank you so much, please go ahead.
• https://www.santellocco.com/atari/programmi.htm ; Thank you so much Philsan from AtarAge, that is a major and giant leap to fully restore Atari Italy. Thank you so much, please go ahead.

• Affrettati + Capovolto - (Cassette: CXT 9501)
• Archiviatutto L' - (Disk: CXT 0415)
• Assembler Editor - (Cartridge: CXLT 4003)
• AtariWriter - (Disk: DXT 8036)
• Aufgepasst + Battaglia degli insetti - (Cassette: CXT 5710)
• Bioritmi - (Cassette: CXT 4107)
• Boccone + Frecce indicatricci - (Cassette: CXT 9502)
• Cara Caramella + Caos - (Cassette: CXT 5706)
• Disk Fixer - (Disk: DXT 5729)
• Golf + Le travi gemelle - (Cassette: CXT 9503)
• Grafica - (Disk: DXT 4109)
• I conti di casa - (Disk: CXT 0421)
• Invito a programmare 1 - (Cassette: CXT 4101)
• Invito a programmare 2 - (Cassette: CXT 4106)
• Invito a programmare 3 - (Cassette: CXT 4117)
• Macro Assembler e Text Editor - (Disk: CX 8121)
• Microsoft BASIC II - (Cartridge: AXT 2025)
• Scram - (Disk: DXT 4123)
• Stati e capitali d'europa - (Cassette + Disk: DXT 4114)
• Statistica - (Disk: DXT 4103)
• UFO + Veloci come il fulmine - (Cassette: CXT 5711)
• Utility 1 - (Disk: DXT 5725)
• Utility 2 - (Disk: DXT 5726)

Netherlands - Atari (Benelux) B.V.#

• Programmeren
  1. Atari Home Computer Audio Training
  2. Programmeren... Hoe Doe Je Dat? (Deel 1) - (Cassette: TXN 4101)
  3. Programmeren... Hoe Doe Je Dat? (Deel 2) - (Cassette: TXN 4106)
  4. Programmeren... Hoe Doe Je Dat? (Deel 3) - (Cassette: TXN 4117)
• Kantoor Thuis
  1. Atari Adressenbestand (Cassette: CXN 4104)
  2. Atari Grafieken (Cassette: TXN 4109)
  3. Atari Kaartsysteem (Disk: DXN 415)
  4. Atari Statistieken (Cassette: TXN 4103
  5. Huishoud-Boek (Disk: DXN 421)
• Algemene Ontwikkeling
  1. Atari Energie (Cassette: TXN 4121)
  2. Bioritme (Cassette: TXN 4107)
  3. Koninkrijk (Cassette: TXN 4102)
• Edukatie
  1. Europese Landen en Hoofdsteden (Cassette: TXN 4114)
  2. Galgje (Cassette: TXN 4108)
• Entertainment
  1. Blackjack (Cassette: TXN 4105)
• Demo
  1. Atari Demo disk (Disk: DXN 411)

United Kingdom - Atari Corporation UK#

• Education
  1. European Countries and Capitals - (Cassette: CX 4114)

• Games
  1. Atari Compilation - (Cassette: TX 9043)
  2. Black Lamp - (Cassette: TX 9049)
  3. Chess - (Cassette: UKC1004)
  4. Compilation A - (Cassette: TXP7100)
  5. Compilation B - (Cassette: TXP7101)
  6. Compilation C - (Cassette: TXP7000)
  7. Computer Chess & European Countries and Capitals - (Cassette: ACC1001)
  8. Cygnus XI - (Cassette: TX 9051)
  9. Eastern Front 1941 - (Cassette: UKC1003)
  10. Heartache - (Cassette: TX 9046)
  11. Nucleus - (Cassette: TX 9050)
  12. Pole Position - (Cassette: TX 8034)
  13. Slingshot - (Cassette: TX 9044)
  14. Speed Hawk - (Cassette: TX 9047)
  15. Star Raiders (Cassette)
  16. The Lone Raider - (Cassette: EC 2001)
  17. The Pay-Off - (Disk: EC 2002)
  18. Thunderfox - (Cassette: TX 9041)
  19. Tiger Attack - (Cassette: TX 9045)
  20. Twilight World - (Cassette: TX 9042)

• Programming
  1. An Invitation To Programming - (Cassette: CX 4101)

• Various
  1. Diskette Pack - (Disk: DX 1002)
  2. Software Pack - (Disk: DX 1003)

Demo#

• Atari In-Store Demonstration Program 1982
• Atari Demonstration Program 1984
• GTIA Demonstration Diskette APX-20104
• Fandal's demo site
• Atarionline demo site
• Atari Home Computers-Demo Ball

Disk Operating Systems (DOS)#

DOS Versions#

• Atari DOS 1
• Atari DOS 2
• Atari DOS 3
• Atari DOS 4
• Atari DOS XE
• AUSTRO.DOS
• BEWE DOS 1.30 Manual
• Bibo-DOS
• LiteDOS
• INDUS CPM 2.2
• INDUS GT Synchromesh
• MyDOS
• OSS OS/A+
• OSS A+ 2
• OSS A+ Professional 2.12
• OSS A+ 4
• OSS DOS XL
• SmartDOS
• Sparta DOS Construction Set Manual
• Sparta DOS X Review
• SpartaDOS
• SuperDOS
• TOP-DOS
• Turbo-DOS
• XDOS 2.43

DOS Related Information#

• Disk formats / Diskettenformate
• Disk drive formats / Laufwerksformate
• 3 Sector read only DOS
  
• Ram-Disk under OS-ROM for XL XE - Article from German "Happy Computer" magazine
• CIOV Tutorial
• File Suffix
• DOS Command Processor
  
• Der XIO Befehl fuer Dateioperationen
• Der XIO Befehl fuer Grafikoperationen
• Other DOS_topics
• RTime8 Manual
• XIO Command Codes DOS Handler

Games#

Voice and Data Cassettes#

• Atari Educational System Lesson Cassettes
• Dorsett Educational System Lesson Cassettes
  

Atari Basic Course: An Invitation to Programming 1-3:

• Course 1: An Invitation to Programming 1 - Fundamentals of Basic Programming CX4101
• Course 2: An Invitation to Programming 2 - Writing Programs one and two CX4106
• Course 3: An Invitation to Programming 3 - Introduction to Sound and Graphics CX4117

Atari Basic Kurs (deutsch): Teil 1 und 2 sind vorhanden, Teil 3 wurde leider nie fertig

• Kurs 1: Programmieren leicht gemacht-Lernen Sie BASIC mit Dagmar Berghoff-TXG4110
• Kurs 2: Noch mehr BASIC-Lernen Sie BASIC mit Dagmar Berghoff-TXG 55007
• Kurs 3: BASIC für Fortgeschrittene-Lernen Sie BASIC mit Dagmar Berghoff

• Conversational GERMAN CX4118
• Conversational FRENCH CX4119
• Conversational SPANISH CX4120
• Conversational ITALIAN CX4125

• Atari Speed Reading
• Atari States & Capitals
• Atari European Countries & Capitals

• Atari Biorhythm cassette-Dual Track with voice, music and data ; size: 21.3 MB ; MP4-file taken from Youtube ; Atari Biorhythm program
• Atari Kingdom cassette-Dual Track with voice, music and data ; size: 14.4 MB ; MP4-file taken from Youtube; main start from minute 1:10 ; Atari Kingdom program
• Atari Hangman cassette-Dual Track with voice, music and data ; size: 19.8 MB ; MP4-file taken from Youtube
• Atari Blackjack

Source Code#

• Intention of the source code chapter

Applications#

1. Atari Calculator
2. Synapse SynCalc
3. The Writer's Tool

Disk Operating Systems (DOS)#

1. Atari DOS 2.0S Source Code ; Inside Atari DOS-Bill Wilkinson ; size: 39.8 MB
2. Atari 810 DOS Utilities Source Listing (DOS II) ; size: 46 MB
3. Atari 815 DUAL DISK CONTROLLER
4. Atari DOS II Assembly Source Listing
5. Atari DOS 2.5 Source Code
6. MyDOS 4.51 source code
7. SuperDOS 5.1 source code

Drivers#

1. Original CX85 Keyboard Handler

Games (in the sequence the authors released the sources to the public)#

1. Eastern Front 1941 ; 1981 from Chris Crawford
2. River Raid ; just Atari VCS 2600 source code ; Atari 8 bit source code is still missing
3. Donkey Kong ; size: 418 KB ; source code not quite complete, but very close
4. Fort Apocalypse ; 2015 from Steve Hales
5. Star Raiders ; 2015 from Doug Neubauer & Steve Hales
6. Sea Dragon ; 2015 from Russ Wetmore
7. Preppie! ; 2015 from Russ Wetmore
8. Preppie! II ; 2015 from Russ Wetmore
9. Blue Max ; 2016 from Bob Polin
10. Pong ; 1986 from Gary S. Domrow
11. Checkers Display ; 2017 from Carol Shaw
12. PAC-MAN

Programming Languages#

Assembler/Debugger:

1. Atari Assembler Editor
2. Atari Macro Assembler and Program Text Editor (AMAC)
3. OSS EASMD
4. OSS BUG/65
5. OSS MAC/65
6. OSS MAC XL
7. OSS MAC XE
8. OSS DDT
9. Synapse Assembler
10. A65 Assembler
11. Bibo-Assembler

Action!:

1. Action!

Basic:

1. Atari Basic Source Code 1 from The Atari Basic Source Book
2. Atari Basic Source Code 2
3. Atari Basic Source Code 3
4. OSS Basic A+
5. OSS Basic XL
6. OSS Basic XE
7. OSS Integer Basic
8. Microsoft Basic
9. Microsoft BASIC for 6502-Original Source Code from 1978
10. ATARI BASIC FOR GCC
11. Turbo-BASIC XL
12. Altirra Basic
13. Basic++

C:

1. OSS TINY-C+ Version 1.1

Forth:
Lisp:
Logo:
Pascal:
Pilot:

1. Atari Pilot
2. Atari Pilot II or Super Pilot

Quick:
Others:

1. Atari Educational System Master Cartridge

Operating Systems (OS) #

1. Atari 400-800 Operating System Source Listing Rev. A - C017893 (1981) ; pdf-file
2. Source listings for all Atari OS revisions ; size: 205 KB ; Source
3. Atari 400-800 Operating System Source Listing Rev. B (1982) ; ASM-file
4. Atari XL Operating System Source Listing ; Rev. 2 ASM-file ; Rev. 11 ASM-file
5. Carol Shaw's more accurate Colleen Floating Point Routines - ultimately not used in the OS: asm file, text file, original document; see Atari Calculator for more info
6. FAST FLOATING POINT source code for the ATARI from Newell Industries & Charles W. Marslett
7. Atari OS Rev. A & B (1979) & Rev. 2 (1983) (Atari) (NTSC & PAL) (400-800-XL-XE) with FAST FLOATING POINT from above
8. Backus–Naur form