Computer mouse movement:
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Input error sound, Pressing a keypad
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Room noise, read, Hard disk, write
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Computer mouse click
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Jet printer
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Computer keyboard
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Photocopy (photocopy)
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Closing the laptop cover, Opening
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Insert the disk into the drive, read the
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Turn on, turn off the old computer
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Laser printer
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Floppy disk reading
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Turn on, turn off the old monitor
★★★★★