Turn on, turn off the hard drive:
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Turn on, turn off the hard drive
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Floppy disk reading
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Repeatedly pressing a computer mouse
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Pressing a keypad, input error sound
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Computer mouse click
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Computer interface, alarm
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Old computer keyboard
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Sound signal of a bios computer, bios
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Turn on, turn off the old computer
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Shutting, Turning on the computer, fan noise
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Disc read, CD / DVD drive
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Signal read information, Computer interface
★★★★★