Bernard Silver and Norman Woodland invented bar codes in 1948.
Their system used light to read a set of concentric circles,but they had to wait two decades before the advent of computers and lasers made their system practical.
However, the bar code system in use today is the Universal Product Code, introduced by IBM in 1973.
The first bar coded item sold was a pack of gum in 1974.
However, the bar code system in use today is the Universal Product Code, introduced by IBM in 1973.
The first bar coded item sold was a pack of gum in 1974.
0 comments:
Post a Comment