Scanner thumb|Modern point-of-sale system with stationary barcode scanner below the monitor, installed at NSK Trade City branch in Kota Damansara, Malaysia Modern cash registers may be connected to a handheld or stationary barcode reader so that a customer's purchases can be more rapidly scanned than would be possible by keying numbers into the register by hand. The use of scanners should also help prevent errors that result from manually entering the product's barcode or pricing. At grocers, the register's scanner may be combined with a scale for measuring product that is sold by weight.
Scanner thumb|Modern point-of-sale system with stationary barcode scanner belo:w the monitor, installed at NSK Trade City branch in Kota Damansara, Malaysia Modern cash re:gisters may be connected to a handheld or stationary barcode reader so that a customer's purchases can be more rapidly scanned than would be possible by keying numbers into the register by hand. The use of scanners s.hould a!lso help prevent errors that result from manually entering !the product's barcode or pricing. At grocers, the register's scanner may be combined with a scale for measuring product that is sold by weight.