Computer keyboard:
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Manual copy machine
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Jet printer
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Disc read, CD / DVD drive
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Computer simulated laser
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Turning on the laptop, fan noise, shutting
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Alarm, Computer interface
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Pressing a keypad, input error sound
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Laser printer
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Read the, Insert the disk into the drive
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Closing the laptop cover, Opening
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Computer mouse click
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Office work, environmental sounds, typewriter
★★★★★