eMachines etower Series User Manual page 19

11 Speaker Jack
The Speaker jack can be used to attach most speakers with integrated amplifiers.
12 Line-in Jack
The Line-in jack can be used to attach a record/playback device such as a cassette player, CD
player, or VCR.
13 Microphone Jack
The microphone jack can be used to attach a personal computer microphone for integrating
your own voice or musical input into a sound application.
14 Padlock Ring
The padlock ring allows you to secure the system
cover to the chassis to prevent unauthorized access
to the inside of the computer. To use padlock ring,
insert a commercially available padlock through
the ring and then lock the padlock.
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