RFID (Radio Frequency Identification)

• is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object.
• RFID in Social Media first came to light in 2010 with Facebook's annual conference.
• RFID is a superior and more efficient way of identifying objects than manual system or use of bar code systems that have been in use since the 1970s
• In 2011, the cost of  tags started at US$0.05 each and special tags, meant to be mounted on metal or withstand gamma sterilization, can go up to US$5. Active tags for tracking containers, medical assets, or monitoring environmental conditions in data centers all start at US$50 and can go up over US$100 each.