These are filled in by the customer and then returned to the company for scanning using ICR (Intelligent Character Recognition) so that the system can produce the bills for the customer instead of the customer having to wait through a process, that could take some time. Earlier versions used punched cards, sometimes with mark sense technology, but nowadays, we use the internet to send payments to a credit card.
Customers provide this information and then send it back to the company for scanning using ICR (Intelligent Character Recognition) in order to produce the bills for the customer instead of requiring them to wait through a lengthy process. Earlier systems utilized punched cards, sometimes with mark sense technology, whereas contemporary methods involve sending payments over the internet to a credit card.