I see that there are several credit cards that offer 0% APR for 6 or 12 months, but what exactly does that mean? I already have 3 credit cards, but I pay them off in full every month so I’ve never paid attention to fees.
Right now I’d like to buy a laptop for school, and pay it off in 6 months but I don’t want to pay any extra fees or interest rate in this period, is this what 0% introductory APR cards are for? And are there any hidden fees I should watch out for?
Thanks.

Most credit card companies have 0% interest for a year and 0% interest on balance transfers for a year and no annual fees.
The only fee you incur is a 3% balance transfer fee (if you do that).
The cards I have with no interest for a year are Chase and Discover.