Turn on, turn off the old computer:
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Computer simulated laser
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Office work, environmental sounds, typewriter
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Turn off the hard drive, Turn on
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Laser printer
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Pressing a keypad, input error sound
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Signal read information, Computer interface
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Computer mouse click
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Alarm, Computer interface
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Computer keyboard
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Double click computer mouse
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Matrix printer
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Closes the CD / DVD tray, Opens, disc read
★★★★★