Print VS print out

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Briefly:

Print out/Print is what a computer printer does/
Print is what a book., magazine or newspaper publisher does.
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so... when I have some documents on my PC and I want to have them in the paper-form I can use both print and print out without any difference in meaing, right?

for instance:

I would like to print out files a, b and c
I'd like to print files a, b and c

the same meaning, right? or can they differ in some way? what I don't quit

As far as printing from a computer, the word out is often included. I'm not sure where it came from, but it is apparently accepted.

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Out as an adverb for a phrasal verb has a number of meanings. Here, perhaps 'completely', as in run out, test out or 'to a distance/extent' as in spread out, stretch out. I picture it to myself, however, as physically coming out of the computer and printer.
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They're basically the same, but I think "print out" suggests that you want to have a physical copy of something as opposed to just a copy on your computer.  "I don't want to read that whole essay on a screen.  Can you print it out for me?" 

Thank u