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Input error sound, Pressing a keypad
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Office work, typewriter, environmental sounds
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Removed, The USB flash drive is inserted
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Communication room, computer noise
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Computer keyboard
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Matrix printer
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Repeatedly pressing a computer mouse
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Jet printer
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Closes the CD / DVD tray, Opens, disc read
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Interference, Modem connection, signal
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Turn off the old computer, Turn on
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General noise, Office work
★★★★★