What are the different types of computer memory?? how to know my memory specifications in need first my CPU?

What are the different types of computer memory?? how to know my memory specifications in need first my CPU?

Try this: http://www.cpuid.com/



CPU-Z - works better than the Crucial scanner (which fail to detect the type of RAM in my system)
Go to your control panel and click systems. You will see the specs on your computer CPU and RAM and the most recent version of OS you are running including the SP.
This site will scan your computer and let you know what kind.

http://www.crucial.com/