For the life of me I can't remember what<<or >>means?

Answer 1

assume thst the output screen is on the left side of your main screen while you are typing code
<< means you send something to that screen
>> means you take something from it...
this is the way I remember it...but its only hypothetical and unreal...just to remember...there is nothing like this concept..hope it helps

Answer 2

<< output
>> input
=]

Answer 3

bitshift (or bit move) operator

Answer 4

some people misunderstand it, << and >> wasn't particularly made for i/o. it was just overloaded for it.