--- title: Atari 1200 XL categories: - Computers types: - Home Computer origins: - U.S.A. years: - '1982' cpus: - MOS 6502C params: name: 1200 XL image: /media/museum/photos/atari_1200xl_system_system_2.jpg logo: /media/museum/logos/atari_1200xl_logo.gif company: /companies/atari company_name: Atari specs: - label: NAME value: 1200 XL - label: MANUFACTURER value: Atari - label: TYPE value: Home Computer - label: ORIGIN value: U.S.A. - label: YEAR value: '1982' - label: KEYBOARD value: Full stroke keyboard + function keys - label: CPU value: MOS 6502C - label: SPEED value: 1.79 MHz - label: CO-PROCESSOR value: GTIA (video output, sprites), POKEY (sound, I/O), ANTIC (video, display lists) - label: RAM value: 64 KB - label: ROM value: 16 KB (the Basic is on a cardridge) - label: TEXT MODES value: 'five text modes, max: 40 x 24, min: 20 x 12' - label: GRAPHIC MODES value: '12 graphic modes, maximum : 320 x 192' - label: COLORS value: 16 colors with 16 intensities - label: SOUND value: four channels, 3.5 octaves - label: I/O PORTS value: Monitor (RGB) video output, RF TV output (to switchbox), Cartridge slot, Peripheral connector, 2 x Joystick connectors - label: BUILT IN MEDIA value: None - label: POWER SUPPLY value: External power supply unit - label: PRICE value: $599.99 (USA, June 1983) tabs: - photos - adverts - hardware - emulators - links - docs - videos forum_thread: 37 photos: - title: 1200 XL subtitle: '' text: '' image: /media/museum/photos/atari_1200xl_system_system_3.jpg - title: LEFT SIDE subtitle: '' text: Power switch, ROM cartriges housing and 2 joysticks plugs. image: /media/museum/photos/atari_1200xl_leftside_1.jpg - title: KEYBOARD CLOSE-UP subtitle: '' text: '' image: /media/museum/photos/atari_1200xl_keyboard_1.jpg - title: REAR SIDE subtitle: '' text: |- **(1)** Serial connector for peripherals\ **(2)** TV aerial plug\ **(3)** DIN plug for NTSC colour or monochrome monitor\ **(4)** TV chanel selector\ **(5)** Power plug. Power is supplied by an external 9V 3A transformer image: /media/museum/photos/atari_1200xl_rear_1.jpg - title: INSIDE subtitle: '' text: |- The mainboard is normally covered with a metallic magnetic shield.\ All of the custom components was the same as the ones of the 400/800 models.\ **(1)** 16 KB OS ROMs\ **(2)** ANTIC custom chip\ **(3)** 6520 PIA chip\ **(4)** Custom version of the 6502 processor made by Rockwell for Atari\ **(5)** GTIA custom chip in charge, with the ANTIC chip, of the various video modes\ **(6)** POKEY sound generator custom chip. GTIA and POKEY were manufactured by Oki\ **(7)** 64 KB RAM chips. Here 8 Mostek 4564 image: /media/museum/photos/atari_1200xl_mainboard_1.jpg - title: MAINBOARD CLOSE-UP subtitle: '' text: '' image: /media/museum/photos/atari_1200xl_mainboard_2.jpg adverts: - title: U.S. AD APRIL 1983 subtitle: '' text: '' image: /media/museum/pubs/atari_1200xl_pub_1.jpg hardware: - title: INDUS GT subtitle: 5''/14 disk-drive text: The Indus GT Double Density Drive is considered by many the best floppy drive available for the 8-bit Atari's with its digital readouts and smoke plexi cover. image: /media/museum/hardware/atari_800_indus-gt_disk-drive_1.jpg - title: ASTRA 2001 FD UNIT subtitle: Dual 5.25 text: Dual 5.25" FDD unit using single side, single or double density floppy drives image: /media/museum/hardware/atari_800_astra2001fd_1.jpg - title: PERCOM DISC DRIVE subtitle: Advert text: |- March 1983 Advert said: The Percom Data AT-88 offers 88 Kbytes (formatted) in single-density, with plug-in ease of attachment to your Atari. The AT-88 has integral power supply, "no-patch" to Atari DOS and critical constant speed regulation.\ Take advantage of this low introductory price of $488... image: /media/museum/hardware/atari_800_percomad_1.jpg - title: CORVUS SYSTEMS HARD-DRIVE subtitle: 10Mb hard-drive text: |- This is a 10Mb hard-drive. With up to 8 multiplexers with 8 ports each it's possible to connect up to 64 Atari 800's up to a single 10 or even 20 megabyte Atari system. Still in use Today at the Fordham Prepatory School in the Bronx, NY is a 64 Atari 800 computer network hooked up to a single Corvus Hard drive system ! The Corvus hard disk system also sported a unique and innovative back-up system called "The Corvus Mirror" which was a VCR interface system that allowed you to plug a standard Video Cassette Recorder (VCR) up to the Corvus Hard Drive System to save back-ups of the hard disk onto actual Video Tapes!!! image: /media/museum/hardware/atari_atari800_hd-corvus-systems_1.jpg - title: TOUCH TABLET subtitle: '' text: The touch tablet was the best tool for drawing and painting. It shipped with the AtariArtist cartridge. image: /media/museum/hardware/atari_800xl_touchtablet_s1.jpg emulators: - title: SIO2PC url: http://www.cswnet.com/~nkennedy/sio2pc.htm platform: MS DOS text: PC emulates Atari Disk - title: Altirra url: http://www.virtualdub.org/altirra.html platform: Windows text: Altirra, an 8-bit Atari computer emulator - title: Atari800Win url: http://www.concentric.net/~Twist/atari800win/ platform: Windows text: '' - title: Atari800Win Plus url: http://a800win.atari-area.prv.pl/ platform: Windows text: Atari 8 bit emulator for windows - title: WAHCE Home Page url: http://www.geocities.com/SiliconValley/Node/4391/ platform: Windows text: '' - title: XFormer url: http://www.emulators.com/xformer.htm platform: Windows text: '' - title: Chris Lam's Website url: http://www.chrislam.co.uk/ platform: Apple text: homepage for Horizon - title: The Atari 800 Emulator for the Mac url: http://www.serve.com/derekl/atari/atari_emu.html platform: Apple text: '' - title: WACKE url: http://www.ctaz.com/~jlfenton/Wacke.html platform: Apple text: '' - title: ACE url: http://www.csh.rit.edu/~shaggy/software.html platform: Unix / Linux text: '' - title: Atari++ url: http://www.math.tu-berlin.de/~thor/atari++/ platform: Unix / Linux text: Unix based emulator of the Atari eight bit computers, namely the Atari 400 and 800, the Atari 400XL, 800XL and 130XE, and the Atari 5200 game console - title: Atari800 url: http://atari800.sourceforge.net/ platform: Multiplatform text: Atari800 is an Atari 800, 800XL, 130XE and 5200 emulator for Unix, Amiga, MS-DOS, Atari TT/Falcon, SDL and WinCE links: - title: 8-bit ATARI Assembly Language url: http://oort.com/turbots/asm.htm text: '' - title: Antic - The Atari Resource url: http://www.atarimagazines.com/ text: '' - title: APE - Atari Peripheral Emulator for DOS and Windows - Home Page url: http://www.nacs.net/~classics/ text: '' - title: Atari 2600-7800 FAQ url: http://www.cs.colostate.edu/~dzubera/2600faq.html text: '' - title: Atari 8-Bit Computers Frequently Asked Questions url: http://www.chez.com/cmpi/paleo/8bits/atari/faq_atar.htm text: '' - title: 'Atari 8-bit computers: 400/800/XL/XE' url: http://www.santellocco.com/ATARI/ text: dedicated website in italian - title: Atari 8-bit New User, Emulator Help FAQ - v2.1 url: http://www.sonic.net/~nbs/new_and_emu.html text: '' - title: Atari 8-bit SpartaDOS Project url: http://www.celebritybase.net/atari8/ text: '' - title: Atari Gaming Headquarters Main Page url: http://www.atarihq.com/ text: '' - title: Atari Magazines url: http://www.atarimagazines.com/ text: Contains the full text of all issues of ANTIC magazine and moste of the STart ones ! - title: Atari XL-XE Games And Demos Page url: http://www.tu-chemnitz.de/~sgl/atari/ text: '' - title: ATARI.ORG url: http://www.atari.org/ text: Looking for something on any Atari machine ? Follow the links ! - title: ATARIARCHIVES.ORG url: http://www.atariarchives.org/ text: Wow! This site is preserving and archiving information about & software for Atari and other classic computers. Everything here is available with the permission of the copyright holders. - title: Dead Hackers Society url: http://www.dhs.nu/ text: Downloads, tools, news and more - title: Homepage Nyman Atari 8 bit url: http://www.geocities.com/SiliconValley/2741/8bit.html text: '' - title: Ken's Atari 8-bit Page url: http://home.columbus.rr.com/ksiders/atari.htm text: '' - title: Mac-Atari Fusion url: http://www2.bitstream.net/~marksim/atarimac/ text: Atari 8bit Resources for Mac Users - title: MacFalkner's XL Homepage url: http://members.aol.com/MacFalkner/atariindex.htm text: '' - title: Personal Atari Web Page url: http://rjespino.tripod.com/atari.html text: jpeg viewer for the Atari 8-bit and some other tools - title: Polish Atari Wikipedia url: http://atariki.krap.pl text: A lot of info about Atari (in polish) - title: Reminiscing 8-Bit Atari Games url: http://www.qlam.com/atari/atari.html text: '' - title: Satantronic Atari Crew, Atari XL-XE and Falcon 030 url: http://www.napri.sk/web/satantronic/ text: '' - title: The Atari 800 XE Laptop url: http://www.benheck.com/Games/Atari_800/Atari_800_laptop_1.htm text: This guy explain how he made a laptop Atari 800 ! - title: The Atari Historical Society url: http://www.atari-history.com/ text: The complete history of Atari Arcade and Home games and computers. Complete site with pictures, commercials (streaming), and full text articles. Amazing site ! - title: www.ataricave.com url: http://www.ataricave.com text: Atari 8-bit Games reviews, original manuals, music, maps and more! - title: XL Search - The Atari 8-bit File Archive Search Engine url: http://www.newbreedsoftware.com/xlsearch/ text: '' - title: Web Wiz CAPTCHA url: http://www.webwizcaptcha.com text: Programming on the Atari computers docs: - title: ATARI 1200 XL OWNER'S GUIDE url: http://www.trailingedge.com/atari8/ cover: /media/museum/docs/couvs/atari-1200xl_owner-guide.jpg text: |- [**ATARI 1200 XL OWNER'S GUIDE**](http://www.trailingedge.com/atari8/)written by Atari  compiled/archived by David Williams\  type of document : PDF\  source : [www.trailingedge.com](http://www.trailingedge.com/) - title: ATARI SYSTEM REFERENCE MANUAL url: http://www.classiccmp.org/dunfield/atarixe/index.htm cover: /media/museum/docs/couvs/doc_atarirefmanual.jpg text: |- [**ATARI SYSTEM REFERENCE MANUAL**](http://www.classiccmp.org/dunfield/atarixe/index.htm)written by Bob DuHamel (1987)  compiled/archived by Ivo van Poorten\  type of document : PDF\  size : 160 KB\  source : [Daves Old Computers](http://www.classiccmp.org/dunfield) **... READ THE ONLINE VERSION BY CLICKING BELOW :** videos: - title: Atari Home Computer laser disc - Introduction url: https://www.youtube.com/watch?v=54mvCo1uq5A text: 'Length: 5 min 20 s' - title: Atari Home Computer laser disc - Conclusion url: https://www.youtube.com/watch?v=vQDQWvwZ-2w text: 'Length: 1 min 30 s' related: - /museum/atari-1400-xl - /museum/atari-1450-xld - /museum/atari-400 - /museum/atari-600-800-xl - /museum/atari-65-130-xe - /museum/atari-65xep-65xem - /museum/atari-800 - /museum/atari-800xe oc_id: 16 source: url: https://web.archive.org/web/20230606193750/http://www.old-computers.com/museum/computer.asp?c=16 date: '2023-06-06' --- The Atari 1200 XL was the predecessor of the [Atari 600/800 XL](/museum/atari-600-800-xl/). It had much of the same characteristics, except the size of its ROM (16 KB instead of 24 KB) the BASIC Interpreter being supplied on a cartridge. Because the built-in Operating System was not designed very well, people are known to have swapped the OS ROM chip from their 800XL & put in the 1200 XL. This machine was a flop in the marketplace and would be produced for only 4 months before being replaced with the 600 & 800 XL machines. This computer was not distributed in Europe. --- **Curl Vendel** says:\ The Atari 1200 XLS was an original concept design of the 1200XL. This design was done by Regan Cheng and was an empty non-functional shell. **Martin Scott Goldberg** says:\ People found out really quick it wasn't compatible with most 400/800 software (a translator disk was later available), which is why Atari rushed to produce the 600 and 800 xl's and put them out that same year. What the 1200XL is known for though, is having the BEST keyboard of any Atari computer - including the ST/TT/Falcons. **Dante Stella** specifies:\ The Atari 1200XL did not suffer from widespread compatibility problems; a relatively small amount of software that (generally) did not precisely conform to 400/800 standards (primarily 3rd-party games) did not work.\ The Translator disk was a relatively obscure product (I think it cost less than $5). A cool trick was to boot from the translator disk, press and hold reset, insert an incompatible cartridge and reboot (ok, it was 20 years ago - but I think I remember that right). I think it was from the 600XL and 800XL that Atari added built-in Atari Basic, an expansion bus and the DIN video connection. Atari also moved distribution from department stores and standalone computer shops to mass-marketers like K-Mart. An anonymous visitor comments:\ The only issue I ever had with my 1200XL, was that sometimes it would have both lights suddenly go on for no reason when Id start it up the first time. It would take several rounds of resets and on off switches before it would go back to normal.\ The 1200xl was replaced because the 800xl was less expensive to produce (much worse keboard), and the 800xl also included a BUSS port which atari was then going to sell expansion devices for. That never actually happened, but a company called ICD did invent a plug in interface that allowed a hacker to connect SCSI hard drives up to it! There was also a printer interface that I have in my basement that claims to have hooked up to the 800xl buss, but I never managed to get it working. (Plus the same ICD interface adds printer support as well as the hard drive)
We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.