technology development in the cockpit

 
Write about the technology in the cockpit from 6 packs to Electronic displays advantage and disadvantge
what are some new technology they build in ? example: Collision Avoidance System TCAS ALSO write about how does theses thing prevent accident or incident ? does this lend to human error more? also , write about nowadays every pilot flight with the iPad compare to old style with all the map and so on . what are the good things and bad things ?

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