Atari 400 Personal Computer (1979-1984)

Atari 400 

The Atari 400, released in 1979 alongside its bigger brother, the Atari 800, was designed as an affordable, kid-proof entry point into home computing. Easily recognized by its distinct beige plastic casing and its smooth, completely flat touch-membrane keyboard, the system was entirely spill-proof—meaning a knocked-over juice box wouldn't ruin the computer. The computer featured a top-loading game cartridge slot protected by a heavy mechanical door, which became the ultimate gateway to legendary arcade hits like Pac-Man and Star Raiders. While its completely flat keyboard made typing up school papers a bit of a challenge, the Atari 400 was a graphical powerhouse that easily beat out contemporary computer rivals, and its four built-in controller ports made it the absolute king of local multiplayer gaming.

Source: eBay.com