Laser printer:
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Turn on, turn off the old computer
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Turn on, turn off the hard drive
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Photocopy (photocopy)
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Sound signal of a bios computer, bios
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Modem connection, interference, signal
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CD / DVD drive, disc read
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Computer interface, signal read information
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Closing the laptop cover, Opening
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Communication room, computer noise
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Old computer keyboard
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Turning on the computer, fan noise, shutting
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Franking machine
★★★★★