So who's the bigger nerd?

[jmowreader]

7. A 6502 is a microprocessor

It powered a lot of old computers:

From what I remember, these machines all contained the 6502:

Apple II and III series (except for the IIgs, which had a different chip)
Commodore PET, C64 and VIC-20
Atari 400 and 800
MOS Technology KIM-1 (which was more of an industrial controller than it was a real computer - the "display" was a set of 7-segment displays and the "keyboard" was a hexadecimal thing with digits from 0 to F...yes, in base-16 "F" is a digit)

There were a few other chipsets out there - Intel had the 8080A, Motorola had the 6800 and Zilog had the Z80. The 6502 was popular for a few reasons - the biggest being it was the cheapest one to get running. The part itself was reasonably priced, you fed it off +5V (the 8080 required three voltages - 5V positive, 5V negative and 12v positive, which meant its power supply needed either two transformers, an 18v center-tapped and a 15v, or one very expensive three-winding one) and the crystal frequency was the same as the processor frequency (for some strange reason, the 2MHz 8080A required an 18MHz crystal).