Hard disk, read, write, room noise:
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Turning on the laptop, shutting, fan noise
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Turn off the hard drive, Turn on
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Environmental sounds, typewriter, Office work
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Modem connection, interference, signal
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Signals, Computer interface
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Alarm, Computer interface
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Sound signal of a bios computer, bios
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Fan noise, shutting, Turning on the computer
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Computer noise, Communication room
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Repeatedly pressing a computer mouse
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Closes the CD / DVD tray, Opens
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Jet printer
★★★★★