Computer Input and Output Devices

Front

What is the purpose of a microphone?

Back

To accept sound input or human voice into a computer system.

Front

What does a voice recognition system do?

Back

Converts sound to text or accepts spoken commands.

Front

What is required for a voice recognition system to work effectively?

Back

A user must train the computer to recognize their voice and match spoken words and phrases with those stored in the database.

Front

How are microphones used in music recording?

Back

They record music in analogue format and store it in digital format.

Front

What are headsets with microphones used for?

Back

Gaming applications and VOIP applications like Skype.

Front

List one advantage of using a microphone.

Back

Faster to speak using a microphone than keying words using a keyboard.

Front

List one disadvantage of using a microphone.

Back

The recognition rate of spoken words can be low if there is background noise.

Front

What is a mouse referred to as?

Back

A pointing device.

Front

How does a mouse function?

Back

It uses built-in sensors to detect movements and send corresponding signals back to the computer.

Front

What technology can a mouse use to connect without a USB cable?

Back

Infrared or wireless technology.