Repeatedly pressing a computer mouse:
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Repeatedly pressing a computer mouse
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Opens, closes the CD / DVD tray
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Computer mouse movement
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Floppy disk reading
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Computer interface, signals
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Manual copy machine
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Opens, disc read, closes the CD / DVD tray
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Old computer keyboard
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Computer keyboard
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Matrix printer
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Turn off the old monitor, Turn on
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Removed, The USB flash drive is inserted
★★★★★