your computer shouldn't turn off. if this is a one-off then maybe you just had a low battery. it could be that you had too many windows open, Java has not been updated or your graphics care is not good enough.
Hope this helps
no you can not
Minecraft is all about the account you made, you can log into that account on any computer, you are not forced to play it only on the computer that you purchased it on.
Yeppers.
Play the game
Yes, simply download it from the minecraft website.
obviously its amazing for ur computer if u play minecraft ur the best! :D
you just have to download it on the computer you want that minecraft to be
Yes you can, but you need to download minecraft for macs
Yes, actually minecraft first came out on computer
if it is a computer
No
Visit the Minecraft website, you can play the free demo version, or Minecraft classic from there.