Which of the following best describes the Internet of Things?

A stand$-$alone computer that controls motors

A microprocessor with a network connection

The digitization of our everyday world

The conversion of analog data to digital data

Which of the following is an example of an IoT device?

Google Assistant

A fluorescent light

A boom box

An analog phone

Which of the following is an IoT device used by utility companies that makes reading energy usage more efficient?

Amazon Echo

Smart meter

Hydrophone

CO

$2$

detector

Which type of sensor is most likely to be used in seismology applications?

Microphone

LDR

Geophone

Photodiode

Which type of sensor changes electrical resistance depending on the amount of light detected?

Proximity sensor

LDR

Gyroscope

PIR