Photocopy (photocopy):
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Signal read information, Computer interface
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Old computer keyboard
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Jet printer
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Laser printer
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Floppy disk reading
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Shutting, fan noise, Turning on the computer
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Insert the disk into the drive, read the
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Modem connection, signal, interference
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Office work, general noise
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Closes the CD / DVD tray, Opens, disc read
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Turn on, turn off the old monitor
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Computer interface, signals
★★★★★