Insert the disk into the drive, read the disk, take it out:
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The USB flash drive is inserted, removed
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Turn on, turn off the hard drive
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Closes the CD / DVD tray, Opens, disc read
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Manual copy machine
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Turn off the old monitor, Turn on
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Modem connection, interference, signal
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Input error sound, Pressing a keypad
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Typewriter, environmental sounds, Office work
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Computer keyboard
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Franking machine
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Laser printer
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Floppy disk reading
★★★★★