The term 'checkout device' refers to a type of technology used in retail stores to process customer purchases. The two solutions for this term are 'SCANNER' and 'conveyorbelt'. A SCANNER is a device that reads barcodes and other information from items and transmits the data to a computer. A conveyor belt is a mechanical device used to transport items from one point to another, usually in a retail setting. Together, these two devices form the checkout device, which is used to process customer purchases.