Matrix printer:
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Computer mouse click
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Opens, disc read, closes the CD / DVD tray
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Photocopy (photocopy)
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Shutting, Turning on the computer, fan noise
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Manual copy machine
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Jet printer
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Insert the disk into the drive, read the
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Old computer keyboard
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The USB flash drive is inserted, removed
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Sound signal of a bios computer, bios
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Repeatedly pressing a computer mouse
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Fan noise, Turning on the laptop, shutting
★★★★★