To find out if your graphics card is compatible with DirectX 11, visit the Windows 7 Compatibility Center. To learn more about DirectX 11 and check compatibility visit, http://windows.microsoft.com/en-us/windows7/products/fe...
Gamblers in California must be a minimum of 18 years old. If however, alcohol is served there, the age is 21 and beyond. Also check out this site: California Casinos which has a clean interface and pulls information from various sources.
All of these only have California legal gambling ages of 18. Poker also has the 18 year old gambling requirement in most cases, though you may find that some card rooms exclude players who are under 21.