Opening, closing the laptop cover:
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Computer mouse click
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The USB flash drive is inserted, removed
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Fan noise, shutting, Turning on the laptop
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Pressing a keypad, input error sound
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Matrix printer
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Turning on the computer, fan noise, shutting
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Alarm, Computer interface
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Double click computer mouse
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Laser printer
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Photocopy (photocopy)
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Modem connection, signal, interference
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Sound signal of a bios computer, bios
★★★★★