A speaker is an audio device can produce sound. Now a days a speaker is well known to all of young people. Because they love to hear song on it. We can find various types of speaker in market. Speaker generally used with cd / dvd player, laptop, personal computer, ipod, etc. Speaker also havily used in different station like bus and train station.
someone who participates in a conference and offers a dissertation or master lesson on some subject, such as a speaker at a conference on bank regulation who offers his expert opinion on the defects in the actual system.
Is an output device, connected to the cpu, used in listening to the music or used in chatting. Built-in speakers are used in different gadgets and appliances, such as: ipod, laptop, mp3 or mp4, cellphones, cd or dvd players, tv, radio, etc. Speaker can be a person who delivers speech in front of selected audiences.
the presiding officer of deliberative assembly, whose duty is to preserve the order and see to it that the rules of debate ate enforced. mostly they lead the congressman and congresswoman.
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