On the Road with Judas2007

Grif:
How many Pac-Men does it take to screw in a light bulb?

Tom:
How many?

Grif:
None, because Pac-Man was built using solid-state circuitry and TTL logic. And when you add that together it's all wired up to a standard arcade display. And then the image seen on the screen is just, you know, a pulsing of the on and off shift in the patterns. And when this pattern changes it creates a shift in voltage. And when they amplify this shift, it produces light.