A ____ is an optical code that represents data with bars of varying widths or heights.
A) digital code
B) character code
C) bar table
D) barcode

Question

Quizplus · Accepted Answer

A barcode is an optical code consisting of bars of varying widths or heights that represent data. The barcode is scanned by a barcode reader which outputs the encoded data to a computer for processing. Barcodes are commonly used in retail to track inventory and checkouts, but they can also be found in other industries for tracking assets or shipments.

A ____ Is an Optical Code That Represents Data with Bars