Turning on the computer, fan noise, shutting down:
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Old computer keyboard
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Computer mouse movement
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Jet printer
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Office work, environmental sounds, typewriter
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Double click computer mouse
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Insert the disk into the drive, read the
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Laser printer
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Manual copy machine
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Closes the CD / DVD tray, Opens
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Matrix printer
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Turn on, turn off the old computer
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Franking machine
★★★★★