Turn on, turn off the hard drive:
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Sound signal of a bios computer, bios
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Fan noise, shutting, Turning on the laptop
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Photocopy (photocopy)
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CD / DVD drive, disc read
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Computer interface, signals
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Turn on, turn off the old computer
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Turn on, turn off the old monitor
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Repeatedly pressing a computer mouse
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Old computer keyboard
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Jet printer
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Fan noise, shutting, Turning on the computer
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Computer interface, signal read information
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