Pressing a keypad, input error sound:
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Manual copy machine
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Computer interface, signal read information
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Office work, general noise
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Communication room, computer noise
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Computer interface, alarm
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Floppy disk reading
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Input error sound, Pressing a keypad
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Computer mouse movement
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Computer simulated laser
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Repeatedly pressing a computer mouse
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Turn on, turn off the hard drive
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Write, Hard disk, read, room noise
★★★★★