In a shop, a cashier (or checkout operator) is a person who scans the goods through a machine called a cash register that the customer wishes to purchase at the retail store. The items are scanned by a Barcode positioned somewhere on the item. This is done by the use of laser technology. After all of the goods have been scanned, the cashier then collects the payment (in cash, check and/or by credit/debit card) for the goods or services exchanged, records the amount received, makes change, and issues receipts or tickets to customers. Cashiers...
Cashiers are usually trained on the job. There are typically no formal educational requirements.
Most cashiers work indoors, usually in retail establishments such as supermarkets, department stores, and restaurants.