Questions on airplanes?

1) every time when an airplane lands why does it go really fast as if it going to take off sort of? and why do the flaps or whatever you call that on the wings move downward or flap up? 2)how does a plane get from one airport to another especially internationally? do they have a system in the cockpit that has way... show more 1) every time when an airplane lands why does it go really fast as if it going to take off sort of? and why do the flaps or whatever you call that on the wings move downward or flap up?
2)how does a plane get from one airport to another especially internationally? do they have a system in the cockpit that has way points that the pilot follows in order to get there? if so what is that system in the cockpits called?
3) is this true that when a pilot lands a plane is there a small tv like computer that they punch in the runway they are going to land at? like a cdu display?
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