Types of credit cards
- Bank cards -- Visa, MasterCard, Discover Card
- Travel and entertainment cards -- American Express, Diners Club
- Proprietary cards -- Sears, Holiday Inn
Types of debit cards
- ATM card -- An online transaction that requires a PIN number.
- Check card -- An offline transaction with a deferred account debit.
- Combination ATM check cards -- Both online and off-line transactions.
Closed cashless systems
- Can restrict transactions
- Can monitor account balances
- Offer enhanced security
- Offer discounts
- Handles transaction internally