adrtho4

Depends on what you do in Computer Science. If you do game development.. then yea you need a dedicated GPU. If you do web dev, then a i3 or Core M is all you need. For software dev, a i5 CPU is plenty, you should be able to manage just fine with a Core M.
You wont be doing anything heavy.
 
If you don't do gaming, my suggestions is to get a Surface Pro with i5 CPU. The power of the device is the pen.
You type your notes, and when it comes with symbols, you have no problem in doing them.
 
I major in CS, I had a powerful laptop, and I got a Surface Pro 2... get a Surface Pro. While students will just give up, or use char map all the time and not listen to class, you just turn it in tablet mode, and write the symbol, or just stay with pen, all your notes are digitize, and nicely organized with OneNote.
 

Nope. The OSX is no better or no worse than Windows or LInux. Each have their strengths and flaws.  Figure out your needs, budget and which interface you like the most. 

Not in the slightest 

Neutral on flat ground. In gear on hills. 
Just how i was taught in driving school.

Thought that vid was cool, but Linus didn't test having that one CPU run 7 different games.   Now that would have been something.

Splain'.

Arch is nice and will teach you how linux works especially since you are building it from the ground up.  Fedora is great as well and is testing ground for a lot of features that will eventually make it into Redhat. Unless you want to do it yourself go with Fedora, else, Arch.