POS solutions are usually equipped with well-known input device - card readers.
Readers allow you to input data in fixed format recognizable by software algorithm much faster and specified than from keyboard. Magnetic cards are used for employee authentication, discounts, client identification and his R-Keeper CRM, Game-Keeper account transactions.
Barcode and 2D (QR) code readers are used for product identification, order numbering (Fast food queue), scale tags input, etc. UCS software also supports other reader types (dallas key, touchless) which we sell as well.