- Speakers and headphones are the primary audio output
devices for a PC.
- Some monitors have speakers built into their sides.
Other speakers are free standing.
- Passive speakers plug into and are powered directly
from the output signal provided by the 'speaker out' port
on the sound card.
- Active speakers amplify the sound signal from the sound card using battery or rectified AC house power.
NME Insitute & I.T Solution Dharmawoti-1, Bagdula Pyuthan -+977 (Nepal) 
+977-086-460029,014106976
+977-987897410,9847907485(24 Hrs.)
nmeiit@yahoo.com, numnme@gmail.com
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Audio
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