Hard disk, read, write, room noise:
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Floppy disk reading
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Signal read information, Computer interface
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Computer interface, signals
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Turn on, turn off the old monitor
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Computer keyboard
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Old computer keyboard
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The USB flash drive is inserted, removed
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Room noise, read, write, Hard disk
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Sound signal of a bios computer, bios
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Computer mouse movement
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Computer simulated laser
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Turning on the computer, shutting, fan noise
★★★★★