Pressing a keypad, input error sound:
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Sound signal of a bios computer, bios
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Office work, general noise
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Closes the CD / DVD tray, Opens
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Computer interface, signals
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Old computer keyboard
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Room noise, read, Hard disk, write
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Disc read, Opens, closes the CD / DVD tray
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Insert the disk into the drive, read the
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Computer interface, alarm
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Computer keyboard
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Opening, closing the laptop cover
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Matrix printer
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