What is hardware?, Computer code, Internet pages, Shop workers, Physical parts, What is a peripheral?, Main program, Extra device, Store room, Food item, What is input?, Data going in, Data coming out, Fixing hardware, Printing paper, What is output?, Paying cash, Scanning items, Data coming out, Data going in, Which device scans barcodes?, Receipt printer, Barcode scanner, Card reader, Cash drawer, Why is scanning better than typing prices?, Needs no power, Uses more paper, Costs more money, Faster, fewer mistakes, What does POS stand for?, Point of Sale, Price on Screen, Place of Shopping, Part of Scanner, Which device is an output device?, Scales, Card reader, Receipt printer, Barcode scanner, What do electronic scales measure?, Screen size, Card number, Item weight, Receipt length, What does a card reader let customers do?, Pay safely, Open drawers, Weigh fruit, Print labels, What happens first at the checkout?, Receipt printed, Total paid, Drawer opens, Item scanned, Why do self-checkouts use packing-area scales?, Print receipts, Check item weight, Cool the machine, Make bags taller

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