In a Grocery Store, a Clerk Uses a Barcode Scanner

question 74

Multiple Choice

In a grocery store, a clerk uses a barcode scanner to read the barcode on an item. Which of the following components of an information system includes this scanning device?

• A) hardware
• B) software
• C) data
• D) procedure

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Definitions:

Atmospheric Perspective

A technique in art and visual perception, creating the illusion of depth by portraying distant objects as paler, less detailed, and usually bluer than nearer objects.

Shape Constancy

The perceptual phenomenon by which we perceive the shape of an object as constant even when its shape changes on the retina due to changes in viewing angle.

Retinal Image

The image formed on the retina of the eye, where light-sensitive cells convert it into neural signals for the brain to interpret as visual information.

Linear Perspective

A technique in visual art and photography that creates the illusion of depth on a flat surface, indicating that objects appear smaller as they recede in space.