Sound signal of a bios computer, bios:
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Read, Hard disk, room noise, write
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Interference, Modem connection, signal
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Pressing a keypad, input error sound
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Office work, general noise
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Computer mouse movement
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Photocopy (photocopy)
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Manual copy machine
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Computer keyboard
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Turn off the hard drive, Turn on
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Computer simulated laser
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Fan noise, Turning on the computer, shutting
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Closes the CD / DVD tray, Opens
★★★★★