More than two years ago, Hewlett-Packard, the IT and computer products and services provider based in Palo Alto, Calif., started deploying RFID in parts of its manufacturing and distribution chain.

Radio Frequency Identification is a technology that uses radio waves to track and identify objects. RAIN RFID is a specific type of RFID that is becoming increasingly popular in the retail industry.

There are many different types of RFID systems employed worldwide, but generally speaking, a device used in cars for toll-collection purposes would be an active transponder that stores a unique serial ...