UPC Price Scanners at Supermarket Checkouts Use Laser Holography to Read

question 30

True/False

UPC price scanners at supermarket checkouts use laser holography to read the bar codes because the packages are three dimensional.

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Definitions:

Customer Service

The help and service given by a business to its customers who purchase or utilize its goods or services.

Outdoor Lighting

The use of outdoor illumination of private gardens and public landscapes for the enhancement of safety, nighttime aesthetics, accessibility, security, recreation, and sports.

Actual Download Speed

The real-time rate at which data is being transferred from the internet to a user’s computer, usually measured in megabits per second (Mbps).

Throughput

The amount of data moved successfully from one place to another in a given time period, often used to measure the performance of a computer network or system.