8. Speakers

Most computers are fitted with a small internal speaker which can produce beeping sounds to alert you if you make an error.

Computers can also be fitted with a sound card (or chip) which will enable sound to be output through external speakers.

These usually produce a much higher quality sound than the internal speaker.

Advantages

• Everyone in the room can hear the output from the computer.
• They can help create an atmosphere or ambience to accompany a presentation
• They help blind people to use the computer because text can be converted into sound

Disadvantages

• The output from speakers can disturb others who are trying to work
• High quality external speakers can be expensive