Sherman
Today (10/7) is the 57th birthday of barcode. Thanks to this invention, many tracking become very convenient. More information on barcode can be found on Wikipedia.
http://en.wikipedia.org/wiki/Barcode
Interested readers can generate their own barcode from the following website:
http://www.morovia.com/free-online-barcode-generator/
http://www.google.com/url?sa=t&source=web&ct=res&cd=4&url=http%3A%2F%2Fen.wikipedia.org%2Fwiki%2FBarcode&ei=NqrMSsvWC4jSsQO9idCPAQ&rct=j&q=bar+code&usg=AFQjCNEWPL1T7B4Wk85y2jkfWIyR9Qjl5w&sig2=lOxO4qYYqUJbjS-wiRlzTQ
