Computer interface, signals:
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Environmental sounds, Office work, typewriter
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Double click computer mouse
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Interference, signal, Modem connection
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Opening, closing the laptop cover
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Disc read, CD / DVD drive
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Floppy disk reading
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Turn on, turn off the old monitor
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Read the, Insert the disk into the drive
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Pressing a keypad, input error sound
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Turn on, turn off the hard drive
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Signals, Computer interface
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Computer mouse movement
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