The original prototype of an Atari "Home Pong" video game system sold for $270,910

Atari's original prototype for the video game system Home Pong sold for $270,910, according to Boston-based RR Auction. It's from the collection of Allan Alcorn, who created Pong, the first video arcade game to become popular in the 1970s.

The system mockup features two potentiometer paddle control knobs, a red 'start game' pushbutton, and a central metal grille for its built-in speaker.