I have always liked that joke (had a copy of it stuck on the wall for about
10 years). It pretty much reflects my opinion of what software geeks know
about how anything in the real world works. Probably half of them need to
call someone in to replace a bulb, a broken washing machine or a dripping
faucet, forget about it. The only options they have are to call a repairman
or replace it. Some of them will throw all caution to the wind and try to
fix it; it usually ends in utter failure and they resolve to never again try
something that foolish.

A nerd reveals his ignorance (as do AP and the BBC) :

"The new chips will combine two microprocessors onto a single piece of silicon.
It is "like putting two cylinders in a car instead of having one big cylinder," technology analyst Nathan Brookwood told AP news
agency."
http://news.bbc.co.uk/1/hi/business/3695369.stm