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Input method Media Device Scenario Limitations
Magnetic Ink Character Cheques with magnetic Magnetic Ink Character A bank needs to make If the cheque gets wet the
Recognition Ink Scanner sure all of the cheques are ink will run and be
real. So all the cheques unreadable
they give out…

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building so they give all of
the guard a card to let Sometimes the magnetic
them in. strip is slow to be read
Biometric Devices Body Is a certain shape GAIT body scanner A government top security Very expensive
GAIT and will be scanned base need to stop
terrorists for…


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