What is the default Video Card for a Windows XP computer?

I have Sims 3 and it claims that I need a 128 MB Video card and im not sure why it isnt playing. does my computer have one of those|||It depends entirely upon the manufacturer and the individual specs of the computer you purchased. There is not default for the operating system as it is a hardware issue.|||go to start then control panel, then system. open system and read info on video card