Input Devices Quiz

What is the primary function of a mouse as an input device?

• Control the cursor on a computer screen and interact with graphical user interfaces

• Make phone calls

• Play music

• Charge the computer battery

How does a keyboard function as an input device?

• A keyboard functions by converting voice commands into text input.

• A keyboard functions by converting physical key presses into electrical signals.

• A keyboard functions by analyzing hand gestures to determine key presses.

• A keyboard functions by projecting holographic images of keys onto a screen.

Explain the role of a scanner as an input device in a computer system.

• The main function of a scanner is to connect multiple computers in a network.

• A scanner is used to print documents from a computer system.

• A scanner plays a crucial role in converting physical documents or images into digital format for input into a computer system.

• Scanners are primarily used for playing audio files on a computer.

In what ways can a microphone be used as an input device?

• By capturing sound waves and converting them into electrical signals for processing.

• By analyzing fingerprints

• By measuring temperature changes

• By projecting images onto a screen

Describe the function of a webcam as an input device.

• A webcam prints documents

• A webcam sends emails

• A webcam cooks food

• A webcam captures video and audio data to input into a computer.

What type of input device is a mouse?

• Keyboard

• Printer

• Monitor

• Pointing device

Which input device is essential for typing text on a computer?

• mouse

• keyboard

• monitor

• printer

Name a common use of a scanner as an input device.

• Printing documents

• Sending emails

• Digitizing physical documents or images

• Playing music

How does a microphone convert sound into digital data?

• Through transduction and sampling

• Via optical recognition and encoding

• By converting vibrations into electrical signals

• Through amplification and modulation

What is the purpose of a webcam in video conferencing applications?

• To play music during the conference

• To send text messages to other participants

• To provide lighting for the room

• To capture and transmit the video feed of the user participating in the conference.