Laser printer:
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Franking machine
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Computer interface, signal read information
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Repeatedly pressing a computer mouse
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Insert the disk into the drive, read the
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Jet printer
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Communication room, computer noise
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Interference, signal, Modem connection
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Room noise, Hard disk, write, read
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Computer mouse click
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Photocopy (photocopy)
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Computer keyboard
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Disc read, CD / DVD drive
★★★★★