Audio Output Devices

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Modern computers using the appropriate software can turn text in a document into audible speech. This is known as speech synthesis. Other types of software allow music and other sounds to be created and played back.
The line between the computer and a home entertainment system is becoming blurred. Computers are able to play music directly from a CD or play a film from a DVD. You can even fit your computer with a radio or TV card to add these functions.

In all cases, the sound is transmitted through a speaker in the same way it is in a sound system or radio.