IGCSE - M3- Output Devices and Sensors Quiz

What is tomography primarily used for?

• To scan documents

• To produce 3D images

• To create 2D images

• To print photographs

Which technology is NOT a common type of touchscreen?

• Optical

• Infrared

• Capacitive

• Resistive

What is the main function of an actuator?

• To control a process

• To convert digital signals

• To scan documents

• To display images

Which type of projector uses a single DMD chip?

• LCD projector

• DLP projector

• LED projector

• 3D projector

What is a key advantage of DLP projectors?

• Longer lifespan

• Better color saturation

• Lower energy consumption

• Higher contrast ratios

Which type of printer uses liquid ink?

• Dot matrix printer

• Laser printer

• 3D printer

• Inkjet printer

What is the primary material used in laser printers?

• Liquid ink

• Toner

• Paper

• Plastic

What do 3D printers create?

• Flat images

• Solid objects

• Text documents

• Audio files

What is the main advantage of OLED screens over LCD screens?

• Generate their own light

• Have lower resolution

• Require backlighting

• Are less expensive

What is the function of a digital to analogue converter (DAC)?

• To convert sound to digital

• To convert digital signals to electric current

• To amplify sound

• To store sound data