How does a credit card and bank work?

I'm planning on getting a Visa credit card, I'm confused on how that connects with the bank? For example, if I was with Bank of America, how would the Visa card connect to that bank?





Any recommendations for a bank by the way?|||It doesn't. You will use the credit card, and when your bill comes, you will have to pay it with w/e money you have in your bank account.





Debit cards on the other hand, are linked directly to your bank account. So any purchases you make on a debit card, it will be deducted from your bank account balance.





You can't spend more then you have in your bank account when you use a debit card. But when you use a credit card, you very much so can. Thats how they catch you on that interest!