Office work, typewriter, environmental sounds:
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Disc read, closes the CD / DVD tray, Opens
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Matrix printer
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Insert the disk into the drive, read the
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Computer keyboard
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Floppy disk reading
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CD / DVD drive, disc read
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Computer interface, signals
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Old computer keyboard
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Computer interface, alarm
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Shutting, fan noise, Turning on the computer
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Computer mouse click
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Removed, The USB flash drive is inserted
★★★★★