Manual copy machine:
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Double click computer mouse
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Jet printer
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Pressing a keypad, input error sound
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Computer keyboard
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Fan noise, Turning on the laptop, shutting
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Old computer keyboard
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Insert the disk into the drive, read the
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Computer interface, signals
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Laser printer
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Computer mouse movement
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Turn off the hard drive, Turn on
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Photocopy (photocopy)
★★★★★