Repeatedly pressing a computer mouse:
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Turn on, turn off the hard drive
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Closes the CD / DVD tray, Opens
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Manual copy machine
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Repeatedly pressing a computer mouse
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Laser printer
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Turn on, turn off the old computer
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Computer simulated laser
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Fan noise, Turning on the computer, shutting
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Closes the CD / DVD tray, Opens, disc read
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Modem connection, signal, interference
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The USB flash drive is inserted, removed
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Computer mouse movement
★★★★★