Computer blog domain

I want to start niche site to affiliate Amazon product in computer niche and I?m looking for some nice and simple domain name so ppl will remember it and come back. Blog will mainly earn on mac products but since mac is trademark better not to use it in domain name. I have couple ideas but I?m not from USA and there may be some cultural differences I don't now so couple questions for you.

I use often "comp" as computer but do you commonly use "comp"?
I fond some nice domain name that include "PC" do you think is it good idea to have PC in domain if I?m selling mac products? I could register same domain name but whew computer rather then PC but PC is shorter.
What synonyms you use for computer?

pc is best and it's international word to understand.

I'd use a different work to differentiate. BOX for example.

I also add nice one whew IT and i think i go whew it