All of us are used to QR codes and scanning things with our phones to get information, but spare a thought for the humble bar code. Sixty years ago it started the tracking and identification revolution and it's with these seemly random bars that still cover everything that a lot our new technology has evolved.
If you want to learn some cool facts about the evolution of the bar
code and the sometimes unlikely things they are used for check out the
Did you know the U.S. Army has used two-foot bar codes to identify
boats in storage at West Point? I did not, and it's other simple,
interesting facts that kept me interested in this look at a living,
breathing dinosaur of technology.