Franking machine:
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Turning on the laptop, fan noise, shutting
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Franking machine
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Closing the laptop cover, Opening
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Fan noise, shutting, Turning on the computer
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Opens, closes the CD / DVD tray, disc read
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Signals, Computer interface
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Computer keyboard
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Interference, Modem connection, signal
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Old computer keyboard
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Repeatedly pressing a computer mouse
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Double click computer mouse
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Bios, Sound signal of a bios computer
★★★★★