random numbers (like matrix )

hi guys is there a way to do the type of effect you can see in some animations were at the start of a word numbers or letters are going so fast like random untill they stop in a number or letter and continues the second letter or number and so on untill the entire word is donde ?
is something like theclassic green matrix background or the pasword hacker were a software tries different numbers untill it gets the right one.

Why don’t you try to do it and then ask us once you have a specific problem?
I can think of many ways to do that, but it’s you who has to do it.
I suggest reading this: http://en.wikipedia.org/wiki/Matrix_digital_rain
It has a close-up of the glyphs. Notice how their color isn’t constant but varies from dark green to white. Also notice that they appear to be in a 3D space where one column is behind the other and some columns appear more faint than others.
Now go out there and try to do that and ask us when you have a specific problem!