Atari was unable to use Wozniak's design. By designing the board with as few chips as possible, he made the design difficult to manufacture; it was too compact and complicated to be feasible with Atari's manufacturing methods. However, Wozniak claims Atari could not understand the design, and speculates "maybe some engineer there was trying to make some kind of modification to it". Atari ended up designing their own version for production, which contained about 100 TTL chips. Wozniak found the gameplay to be the same as his original creation, and could not find any differences.