Digital Versus Analogue Communication

What role do Analog-to-Digital Converters (ADCs) and Digital-to-Analog Converters (DACs) play in communication?

• They convert analog signals to digital and vice versa.

• They amplify signals.

• They filter noise from signals.

• They modulate signals.

In terms of storage and transmission, digital communication is ________ compared to analog communication.

• more efficient

• less efficient

• equally efficient

• not efficient

The role of temperature sensors in ADC applications is to:

• measure temperature changes and convert them into digital signals

• provide power supply to the ADC

• act as a storage device for ADC data

• control the ADC's clock speed

What do pressure sensors measure and convert in ADC applications?

• Temperature and humidity

• Pressure and force

• Voltage and current

• Light and sound

Fill in the blank: A 12-bit DAC has ______ steps.

• 4096

• 2048

• 1024

• 8192

Which type of actuators are controlled using smooth analog voltage signals?

• Servo motors

• Stepper motors

• Hydraulic actuators

• Pneumatic actuators