Inside the Commodore 64

This pioneering PC made instant geeks out of millions of people back in the '80s. But what lies within the Commodore 64's fetching brown shell?

Mmmmmm, Brains


Now let's zoom in on a few of the motherboard's other important chips. The C64's CPU, the MOS 6510 (the longest black chip in this photo) is a marginally improved 6502 CPU, but it runs at a painfully slow 1 MHz.
The best-known of the Commodore 64's chips these days is probably the 6581 SID synthesizer chip (center of photo), which creates the tinny, raspy sounds that people can't get enough of. In the 80s, the SID (short for "Sound Interface Device") was the most advanced sound-generating chip of its kind, and musicians everywhere still prize the SID's low-fi retro sounds.

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