The bouncer and bartenders at Keys on Main have to stay alert for many potential problems, especially people drinking too much or minors trying to get into the bar. On nights when the line stretches ...

When you're talking about data collection, two technologies come to mind: bar code scanning and RFID (radio frequency identification). The former has been a staple in data collection for more than 30 ...

APPLETON, Wis.—Appleton police are using scanner technology to keep convicted criminals out of some of the city’s most popular bars, but critics are raising privacy concerns. Authorities claim ...

Often found at the checkout counter, laser scanners decipher information contained within bar codes, allowing a host computer to process data such as product names and costs. Projecting a laser beam ...

Executive Editor David Carnoy has been a leading member of CNET's Reviews team since 2000. He covers the gamut of gadgets and is a notable reviewer of mobile accessories and portable audio products, ...

We all get stuck at the supermarket checkout from time to time when the assistant can’t get an item’s bar code to scan. We’re left watching in awkward silence as the flustered employee waves the item ...