Editing Atari 8-bit computers (section)

=== Models ===

Atari, Inc. shipped three updated versions of the 400/800 using the same chipset and with a different case aesthetic: the short-lived 1200XL, then the 600XL and 800XL. Numerous other, wide-ranging projects to develop successors to the 8-bit line were cancelled. After the re-establishment of Atari as Atari Corporation, three more systems were released using largely the same technology as earlier machines: the 65XE and 128 KB 130XE in 1985, and finally the game console inspired [[Atari XEGS]] in 1987.

* 400 and 800 (1979)&nbsp;– original machines in beige cases. Both have 4 joystick ports below the keyboard and a cartridge slot covered by a door on the top of the machine. The 400 has a [[membrane keyboard]]. The 800 has full-travel keys, a second, rarely used, cartridge slot, and monitor output. Both have expandable memory (up to 48&nbsp;KB); the RAM slots are easily accessible in the 800. Later [[PAL]] versions have the 6502C processor.
* 1200XL (1983)&nbsp;– new aluminum and smoked plastic case. Includes 64&nbsp;KB of RAM, two joystick ports, a Help key, and four function keys. Some older software was incompatible with the new OS. Starting with the 1200XL, the single cartridge slot is on the side of the case, and there are only 2 joystick ports.
* 600XL and 800XL (1983)&nbsp;– the 600XL has 16&nbsp;KB of memory and PAL versions have a monitor port. The 800XL has 64&nbsp;KB and monitor output. Both have built-in BASIC and a [[Parallel Bus Interface (PBI)]] expansion port. The last produced PAL units contain the [[Atari FREDDIE]] chip and Atari BASIC revision C.
* 65XE and 130XE (1985)&nbsp;– the 65XE has 64&nbsp;KB of RAM. The 130XE has 128&nbsp;KB of bank-switched RAM and an [[Enhanced Cartridge Interface (ECI)]] instead of a PBI. The first revisions of the 65XE have no ECI or PBI, and the later ones contain the ECI. The 65XE was relabelled as 800XE due to the local popularity of the 800XL, and was mostly sold in [[Central Europe]].{{sfn|Current|2023|loc=1.10) What is the Atari 800XE?}}<ref>{{cite web |title=Atari 800XE |url=https://gury.atari8.info/tech_atari800xe.php |website=Atari8.info |archive-url=https://web.archive.org/web/20140818010334/http://gury.atari8.info/tech_atari800xe.php |archive-date=18 August 2014}}</ref>
* XE Game System (1987)&nbsp;– a 65XE styled as a game console. The basic version of the system shipped without the detachable keyboard. With the keyboard it operates just like other Atari 8-bit computer models. The cartridge slot is on the top, like other consoles.