Hard disk, read, write, room noise:
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Matrix printer
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Room noise, write, Hard disk, read
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Computer noise, Communication room
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Computer simulated laser
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Computer interface, alarm
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Turn off the old computer, Turn on
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Laser printer
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Disc read, closes the CD / DVD tray, Opens
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Signals, Computer interface
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Turn on, turn off the hard drive
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Insert the disk into the drive, read the
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CD / DVD drive, disc read
★★★★★