Computer gadgets can be tricky as not all of us are techies to know and understand the stuffs.
You don't need to know how these stuffs works but atleast you should know what specifications your computers runs on. So here is how to check your PC configurations..
It may be a long time since you bought your PC and you may have forgotten the specifications. All you got to do is just download and install this free software CPU-Z.
It gives you the details of your processor (Name, number of threads, core, cache memory, FSB frequency, bandwith), mother board details, RAM info and Graphic Card details.
Just one of those software which will help you decide on upgrading your PC when you think about new gadgets and their specifications to compare with the one you have at present. Here is my processor specifications.