Computer keyboard:
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Photocopy (photocopy)
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Disc read, closes the CD / DVD tray, Opens
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The USB flash drive is inserted, removed
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Sound signal of a bios computer, bios
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Office work, general noise
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Computer mouse click
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Modem connection, interference, signal
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Manual copy machine
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Closing the laptop cover, Opening
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Turn on, turn off the old monitor
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Computer interface, alarm
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Computer keyboard
★★★★★