Green’s Dictionary of Slang

chiphead n.

[SE (silicon) chip + -head sfx (3)]

a computer enthusiast.

[US] in Time 3 Jan. 1983 18: I’m not a chiphead...but if you don’t keep up with the new developments...you’re not going to have the competitive edge [HDAS].
[UK]H.B. Gilmour Pretty in Pink 47: It had to be some chip-head fooling around, and he’d obviously cut into the wrong computer.
www.netlingo.com [Internet] chiphead. Another name for an old-time computer science engineer. see also: gearhead, modemhead, Net head, Web head.