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See below for specifications and information on this system.
Specifications and information
|Key Dates:||Announced December 1978
Ships October 1979
|CPU:||6502, 1.79 MHz|
|Operating System:||BASIC in ROM (10K ROM pack + BASIC cartridge)
Atari DOS on diskette
|Input/Output:||4 joystick ports, Atari cable bus|
|Bus:||One cartridge slot
Atari daisy-chain cable bus, connects floppy drives, cassette drive, and Atari 850 I/O interface, which includes serial and parallel ports.
|Other Items in Collection:||Full documentation, Atari DOS 2.5 & 3.0, various cartridges & games on diskette|
The Atari 400 and 800 were launched simultaneously, although the 800 was not available in the retail channel for a few months. The membrane keyboard prohibited touch typing and limited the 400's applications to primarily games.
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Last modified: April 17, 2003