Credit card processing fees vary by payment processor and pricing structure, but in general, they're 1.5% to 3.5% of the transaction. Many, or all, of the products featured on this page are from our ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Toby Walters is a financial writer, investor, and lifelong learner. He has a passion for ...

Processing performed in one computer or in a cluster of coupled computers in a single location. Access to the computer is via "dumb terminals," which send only input and receive output or "smart ...