CD / DVD drive, disc read:
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Hard disk, read, write, room noise
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Removed, The USB flash drive is inserted
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Opening, closing the laptop cover
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Old computer keyboard
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Shutting, fan noise, Turning on the laptop
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Laser printer
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Alarm, Computer interface
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Opens, closes the CD / DVD tray
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Turn on, turn off the old monitor
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Shutting, Turning on the computer, fan noise
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Communication room, computer noise
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Franking machine
★★★★★