Internet Cookies are little bits of data that websites store on your computer.
Like when you login to myspace or something, and it'll ask you if you want it to remember your password so it logs you in automatically, it will store a cookie on your PC so that it can just read from that your login details.
Device drivers are basically files that tell your computer how to use your hardware (graphics card, sound card etc) it's always best to keep these as up to date as possible.
If you want me to explain how you can check, then private message me
