It's not many 40-year old technologies that can still lay claim to being "cutting edge," but one may be the humble bar code, which started as a way to speed checkout lines at grocery stores and today ...

The illustration above was sent to me as the front of a card from Motorola, Inc. about the 35th anniversary of the first bar-code scanning ever done. It was on a 10-pack of Wrigley's Juicy Fruit at a ...