Pong is now 50 years old. Here's the story of its invention.

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Fifty years ago this week, Atari installed the first Pong machine in a Silicon Valley bar called Andy Capp's. The world was never the same. Back in 1999, I wrote a feature for Salon about Pong co-creator Nolan Bushnell and how porting table tennis to the television launched a revolution in hand-eye coordination and on-screen entertainment. — Read the rest