Output Devices and Sensors Quiz

Which of the following is NOT an output device?

• Monitor

• Speaker

• Keyboard

• Printer

Which type of monitor uses individual pixels that emit their own light?

• LCD

• LED

• OLED

• CRT

Which characteristic makes OLED displays better than traditional LCD displays?

• OLEDs have deeper blacks and higher contrast

• OLEDs are bulkier and cheaper

• OLEDs need a backlight to work

• OLED screens consume more power

What is the function of an output device?

• To send data to a computer for processing

• To store data permanently

• To display or present information from a computer

• To connect input devices

During a school presentation, Michael used a DLP projector to display his project. The teacher asked, what technology does the DLP projector use to create an image?

• Liquid Crystal Displays

• Thousands of tiny mirrors reflecting light

• Fluorescent backlighting

• A beam of lasers

What is a key advantage of laser printers over inkjet printers?

• Laser printers are cheaper to buy

• Laser printers are faster and more efficient

• Laser printers use liquid ink

• Laser printers cannot print in color

Which of these output devices provides tactile feedback?

• Monitor

• Speaker

• Printer

• Braille Display

A plotter is a type of printer used mainly for:

• Printing simple text documents

• Printing high-speed office reports

• Printing large, detailed technical drawings

• Printing on transparent film

What does the refresh rate of a monitor refer to?

• The brightness of the display

• The number of times per second the screen updates

• The contrast ratio of the screen

• The screen's response time

What is the main advantage of LED projectors over older types?

• They are heavier and more expensive

• They last longer and use less energy

• They need more maintenance than LCD projectors

• They cannot display Full HD images