Turn on, turn off the old computer:
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Computer interface, signals
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Computer mouse click
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Office work, environmental sounds, typewriter
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Insert the disk into the drive, read the
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Closes the CD / DVD tray, Opens
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Manual copy machine
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Turning on the computer, fan noise, shutting
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Franking machine
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Input error sound, Pressing a keypad
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Opens, disc read, closes the CD / DVD tray
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CD / DVD drive, disc read
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Signal read information, Computer interface
★★★★★