Hard disk, read, write, room noise:
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Laser printer
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Computer interface, signals
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CD / DVD drive, disc read
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Manual copy machine
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Turn on, turn off the hard drive
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Computer simulated laser
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Double click computer mouse
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Communication room, computer noise
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Bios, Sound signal of a bios computer
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Closes the CD / DVD tray, Opens
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Photocopy (photocopy)
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Shutting, Turning on the laptop, fan noise
★★★★★