You have 4 options:
1) If you have the game on Steam in Windows, chances are that the Mac version of Steam has a Mac version of the game available and you may download it for free.
2) install Windows with the Mac OS X app "Boot camp" and play it directly on Windows on your Mac.
3) Download CrossOver (www.codeweavers.com)
4) Try a virtualized solution (Paralells or Fusion)
Not directly. A mac emulator is required, and even then not all games will be supported.
Sadly, it is no possible. PC games are made only for PC. You must buy the Mac version of your game to play it on the mac.
ye syou can play mac os compatible games on it
YES
No you can not, as CD-ROM games are for a PC or MAC.
Bootcamp, install windows on your mac.
Most disc games can but you may need a special download if you want a mac game on windows PC
PC games are games that can only be run on a PC. (Personal Computer) These games cannot be run on a Mac, likewise, Mac games cannot be run on a PC.
yes... there are no restrictions if you play on a Mac or PC
Yes, it's possible to play multiplayer games between a Mac and PC. It depends on what game and how you decide to do it.
No, you play PC games on your PC and you can not even play MAC games on a PC. There are emulators out there that may work but then you run into a copyright issue with Sony because you'll need a copy of their BIOS and the game itself. It can be done but it's probably not legal.
Chrome, by a long shot, if you are on PC and probably just safari on mac