Repeatedly pressing a computer mouse:
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Read the, Insert the disk into the drive
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Jet printer
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Closing the laptop cover, Opening
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Computer simulated laser
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CD / DVD drive, disc read
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Matrix printer
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Pressing a keypad, input error sound
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Turning on the computer, shutting, fan noise
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Turn off the old computer, Turn on
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Computer keyboard
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The USB flash drive is inserted, removed
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Typewriter, Office work, environmental sounds
★★★★★