Laser printer:
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Shutting, Turning on the computer, fan noise
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Removed, The USB flash drive is inserted
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Double click computer mouse
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Sound signal of a bios computer, bios
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Jet printer
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Input error sound, Pressing a keypad
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Insert the disk into the drive, read the
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Opens, closes the CD / DVD tray
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Matrix printer
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Disc read, closes the CD / DVD tray, Opens
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Office work, general noise
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Computer simulated laser
★★★★★