Turn on, turn off the old monitor:
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Opens, closes the CD / DVD tray
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Computer keyboard
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Double click computer mouse
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Matrix printer
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Sound signal of a bios computer, bios
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Removed, The USB flash drive is inserted
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Laser printer
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Computer simulated laser
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Typewriter, Office work, environmental sounds
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Closing the laptop cover, Opening
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Photocopy (photocopy)
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Signal, Modem connection, interference
★★★★★