Hard disk, read, write, room noise:
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Opens, closes the CD / DVD tray
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Alarm, Computer interface
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Turning on the laptop, fan noise, shutting
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Manual copy machine
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Computer interface, signals
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Turn on, turn off the hard drive
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Computer mouse movement
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Old computer keyboard
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Signal, Modem connection, interference
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Franking machine
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Insert the disk into the drive, read the
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Jet printer
★★★★★