Opening, closing the laptop cover:
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Hard disk, write, room noise, read
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Signals, Computer interface
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Typewriter, Office work, environmental sounds
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Computer keyboard
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Computer simulated laser
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Input error sound, Pressing a keypad
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Repeatedly pressing a computer mouse
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Disc read, CD / DVD drive
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Floppy disk reading
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Closing the laptop cover, Opening
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Sound signal of a bios computer, bios
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Manual copy machine
★★★★★