A memory device sometimes used in hand-held bar code scanner. Check Reader - A peripheral device used to read encoded information on a check. The rules governing the exchange of information between devices. Computer Monitor - A video device used to display computer characters and graphics. Monochrome monitors display only one color, such as amber or green.
Color monitors display up to millions of colors.
Authorization - The process by which a credit card is accepted, read and approved. A device that reads the magnetic stripe on a credit card for account information to be processed for a transaction. A credit card reader can be integrated into a register, attached onto a register as a separate component such as a keyboard, or is part of a stand-alone terminal dedicated to processing credit card transactions. Cursor - A blinking symbol on the screen that indicates where data may be entered next. Customer Pole Display - A peripheral device designed to show customers information about their transaction.