Computer interface, signals:
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Franking machine
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Manual copy machine
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Turn on, turn off the hard drive
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Office work, general noise
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Matrix printer
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Computer noise, Communication room
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Laser printer
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Computer interface, signals
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Room noise, read, Hard disk, write
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CD / DVD drive, disc read
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Sound signal of a bios computer, bios
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Turn off the old computer, Turn on
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