Computer keyboard:
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Matrix printer
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Typewriter, environmental sounds, Office work
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Turn off the old monitor, Turn on
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Opening, closing the laptop cover
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Sound signal of a bios computer, bios
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Shutting, fan noise, Turning on the laptop
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Floppy disk reading
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Opens, closes the CD / DVD tray
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Interference, Modem connection, signal
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Hard disk, write, read, room noise
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Computer noise, Communication room
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Disc read, Opens, closes the CD / DVD tray
★★★★★