Also, your average Pizza Hut probably has 9 or 10 Debit Machines on premises. Most stores have delivery service, and you'll need a machine for each delivery driver. Also they'll have 2 or three machines for in the store, at the counter, or wireless for in the sit down restaurant.
In Canada perhaps, not in the U.S.
We don't have sit down wireless readers here.
Delivery service is either paid online or over the phone (where you give them your card info). The driver's don't carry the machine.
Each Pizza Hut in the U.S has one or two terminals (two at the most).
I don't blame you for not knowing any of this... the U.S is a joke and backwards.