Urm... you just buy Portal 2 from Steam and then play it...
You need to buy Portal in order to play the mod Portal: Prelude.
if ure talking about ps3 its not possible yet for ps2 get a ROM and a PS a ROM as well
You will need to search for a PS3 to PC driver. After, connect your PS3 to your PC with USB.
If you want to play the game on a PC or a Mac, yes.
Portal does not have online like Black Ops and Halo, etc. Portal 2 does have a Co-op though so you can play with friends.
no
No, Portal is for PC only. Portal 2 is for PS3,Xbox 360,and PC. Plus it would suck on PSP.
It depends do you mean can you play the console on a PC screen or Can you actaully play the games on a PC without the console?? It depends do you mean can you play the console on a PC screen or Can you actaully play the games on a PC without the console??
The PC will not play ps1 or ps2 games without an emulator
It's for PC and PC only.
Read my answer under the question How do you play a PC game without the disc in the disc drive? on this site.
no you cannot anymore because portal prelude was terminated