Of course he should use a condom!! And he should put it on just like the instructions say.
As compared to what? Are you asking what can go wrong with a computer OR what can go wrong while using a computer?
Graboid.com has a lot of episodes. They are the best video service period. And they offer free as well as paid subscriptions. I quit watching TV thanks to them and I'll never go back after being spoiled by commercialless video. Try em, you might cancel your cable subscription like I did.