Pressing a keypad, input error sound:
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CD / DVD drive, disc read
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Repeatedly pressing a computer mouse
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Alarm, Computer interface
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Turn on, turn off the old computer
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The USB flash drive is inserted, removed
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Matrix printer
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Computer mouse click
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Laser printer
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Computer noise, Communication room
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Fan noise, shutting, Turning on the laptop
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Turn on, turn off the hard drive
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Signals, Computer interface
★★★★★