Computer interface, alarm:
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Computer simulated laser
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Turn off the old monitor, Turn on
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Double click computer mouse
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The USB flash drive is inserted, removed
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CD / DVD drive, disc read
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Bios, Sound signal of a bios computer
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Matrix printer
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Modem connection, signal, interference
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Old computer keyboard
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Closes the CD / DVD tray, Opens
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Computer mouse movement
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Computer mouse click
★★★★★