Hello,
I'm writing asp.net service, which allow to pay via paypal (it handle paypal accounts and credit cards as well). But know, I'm looking for a way, to process card payment via USB terminal. I'll be glad for any hints like:
-How it works (beceuse I've never worked with card readers)
-Any learning materials
-Companies, which allow to process requests like this (maybe there is way to use paypal services to terminal requests too?)
-Any other help ;)
