Opens, closes the CD / DVD tray:
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Computer mouse click
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Computer keyboard
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Turn off the hard drive, Turn on
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Modem connection, signal, interference
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The USB flash drive is inserted, removed
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Jet printer
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Manual copy machine
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Input error sound, Pressing a keypad
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Computer mouse movement
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Franking machine
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Opens, disc read, closes the CD / DVD tray
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Laser printer
★★★★★