Ka-ching! The cash register may be on its final sale.
Stores across the US are ditching the old-fashioned, clunky machines and having salespeople and even shoppers themselves ring up sales on smartphones and tablet computers.
Barneys New York, a luxury retailer, this year plans to use iPads or iPod Touch devices for credit and debit card purchases in seven of its nearly two dozen regular-price stores. Urban Outfitters, a teen clothing chain, ordered its last traditional register last year and plans to go completely mobile one day.
Wal-Mart, the world's largest retailer, is testing an app that lets customers scan items as they shop.
"The traditional cash register is heading toward obsolescence," said Danielle Vitale, chief operating officer of Barneys New York.