Sound signal of a bios computer, bios:
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Opening, closing the laptop cover
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Computer interface, signals
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Matrix printer
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Turn off the old monitor, Turn on
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Opens, closes the CD / DVD tray, disc read
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Signal, Modem connection, interference
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Write, read, room noise, Hard disk
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Double click computer mouse
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Computer mouse movement
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Turning on the computer, shutting, fan noise
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Manual copy machine
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Laser printer
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