Ive wondered in estimation how much of "my" data is stored in various types of memory. CPU cache if I am actively browsing a website, those last couple IMs stor

Ive wondered in estimation how much of "my" data is stored in various types of memory. CPU cache if I am actively browsing a website, those last couple IMs stored in the RAM of some server? Any content i have ever uploaded to the internet is probably on a hard disk ready to be brought to cache at a moments notice. Then there are all the backups on tape.