Modem connection, signal, interference:
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Turn on, turn off the hard drive
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Computer mouse click
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Turning on the laptop, fan noise, shutting
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Photocopy (photocopy)
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Computer keyboard
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Computer simulated laser
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Jet printer
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Turn on, turn off the old monitor
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CD / DVD drive, disc read
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Environmental sounds, Office work, typewriter
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Signal read information, Computer interface
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Hard disk, room noise, read, write
★★★★★