Opening, closing the laptop cover:
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Turning on the computer, shutting, fan noise
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Interference, Modem connection, signal
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Signal read information, Computer interface
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Franking machine
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CD / DVD drive, disc read
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Computer interface, signals
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Closes the CD / DVD tray, Opens
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Hard disk, write, read, room noise
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Turn on, turn off the old computer
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Read the, Insert the disk into the drive
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Removed, The USB flash drive is inserted
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Jet printer
★★★★★