Turning on the laptop, fan noise, shutting down:
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Repeatedly pressing a computer mouse
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The USB flash drive is inserted, removed
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Laser printer
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Computer simulated laser
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Bios, Sound signal of a bios computer
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Signal, interference, Modem connection
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Office work, environmental sounds, typewriter
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Old computer keyboard
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Computer interface, signal read information
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Shutting, fan noise, Turning on the laptop
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Computer keyboard
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Opens, disc read, closes the CD / DVD tray
★★★★★