Photocopy (photocopy):
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Closes the CD / DVD tray, Opens
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Computer mouse movement
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Input error sound, Pressing a keypad
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Computer simulated laser
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Signal read information, Computer interface
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Closing the laptop cover, Opening
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Environmental sounds, Office work, typewriter
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Signal, Modem connection, interference
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Laser printer
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Sound signal of a bios computer, bios
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Floppy disk reading
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Repeatedly pressing a computer mouse
★★★★★