Critical Thinking Questions Case 7-1
You recently started working part-time in a retail store, and are learning about the reading devices your store uses.
Your store uses a bar code reader to process items during checkout. What type of technology does the bar code reader use?
A) light sources
B) sonar
C) laser beams
D) radio frequency

Question

Quizplus · Accepted Answer

Bar code readers typically use laser beams to scan and read the bar codes on products.