A. Credit Cardb
B. Card reader
C. Bar code
D. None of these
Submitted by: Rashid Mehmood
George J. Laurer, who had invented Universal Product Code (Bar code) at IBM, passed away last week at the age of 94 years. His invention transformed retail and other industries across the world.
Correct Answer: Bar code ✔
Last Updated: December 11, 2019