Insert the disk into the drive, read the disk, take it out:
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Pressing a keypad, input error sound
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Sound signal of a bios computer, bios
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Closing the laptop cover, Opening
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Signals, Computer interface
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Alarm, Computer interface
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Turn on, turn off the hard drive
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Turn off the old monitor, Turn on
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Opens, closes the CD / DVD tray
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Modem connection, interference, signal
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Double click computer mouse
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Repeatedly pressing a computer mouse
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Room noise, read, Hard disk, write
★★★★★