Turn on, turn off the old computer:
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Environmental sounds, Office work, typewriter
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Shutting, Turning on the laptop, fan noise
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Jet printer
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Bios, Sound signal of a bios computer
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Computer interface, alarm
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Turn on, turn off the hard drive
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Communication room, computer noise
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Manual copy machine
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Removed, The USB flash drive is inserted
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Input error sound, Pressing a keypad
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Computer mouse click
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Old computer keyboard
★★★★★