ANALOG VS. DIGITAL

Which of the following is an analog signal?

• A signal made of physical waves (like light or sound)

• A signal made of electrical impulses

• A signal made of electrical impulses OR physical waves

• None of the other answers are correct

Which of the following is an example of something that stores data in an analog way?

• CD

• Cassette tape

• USB stick

• Computer hard drive

Which of the following is an example of a digital technology?

• DVDs

• mechanical watch

• acoustic guitar sound

• humming of a bird

All of the following refers to analog except?

• Information in the natural world is transferred using waves.

• A light wave bounces off the rose and enters your eye.

• is what the computer understands, and is made up of patterns of electricity

• Eardrum physically moves up and down in a wave pattern.

All of the following are benefits of digital except?

• Are cheaper

• Allow copies to be made without losing or degrading the original

• Do not allow copies to be made without losing or degrading the original,

• It tend to pick up less noise

Which of the following refer to the number of possible values in digital?

• infinite

• finite

• neither

• both

What are binary values that is used in digital?

• 2 and 3

• 1 and 0

• 5 and 6

• 2 and 0

Which of the following is affected by noise?

• Analog

• Both

• Digital

• Neither

Which is stored in a form of binary bit?

• Analog

• Both

• Digital

• Neither

Computers, CDs and DVDs are examples of what type of signal?

• Analog

• Digital

• Neither

• Both