Computer interface, alarm:
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Computer keyboard
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Floppy disk reading
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Disc read, Opens, closes the CD / DVD tray
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Franking machine
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Manual copy machine
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Write, Hard disk, room noise, read
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Removed, The USB flash drive is inserted
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Old computer keyboard
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Opening, closing the laptop cover
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Computer mouse click
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Laser printer
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Modem connection, signal, interference
★★★★★