Input Devices

Which one is not a sensor?

• pH

• temperature

• sound

• magnetic field

• smell

Which ones are input devices?

• keyboard

• webcam

• 2D scanner

• QR code reader

• microphone

What does ADC stand for?

What could be used by disabled people who can't easily use a mouse or keyboard?

• microphone

• trackerball

• QR code scanner

• 3D printer

• facial recognition

What is the color for #00FFFF?

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• 
• 

This is a signal that fluctuates exactly like the original signal.

• Analog

• Digital

• High Definition

• Binary

This is a signal where the data is represented by binary digits.

• Digital

• Analog

• NTSC

• CRT

The signal above is an example of a(n)

• Digital Signal
• Analog Signal

This is the language of the internet

Which is slower

• HDD

• SDD

• RAM

• CPU Cache