Office work, general noise:
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Bios, Sound signal of a bios computer
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Computer noise, Communication room
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Turn off the old computer, Turn on
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Computer keyboard
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Photocopy (photocopy)
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Fan noise, shutting, Turning on the laptop
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Signals, Computer interface
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Insert the disk into the drive, read the
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Alarm, Computer interface
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Turn on, turn off the old monitor
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Hard disk, room noise, write, read
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Computer mouse movement
★★★★★