The Atari 400 is an 8-bit home computer released by Atari, Inc. in 1979. It was designed for both gaming and educational purposes, featuring a built-in keyboard and a cartridge slot for software. The system was part of the Atari 8-bit family and was known for its colorful graphics and sound capabilities, making it popular among early computer enthusiasts. The Atari 400 utilized the MOS Technology 6502 microprocessor and came with 8 KB of RAM, which could be expanded. It supported a variety of peripherals, including disk drives and printers, and was compatible with many popular games and applications of its time.