I'll have a 1tb sata ssd and a 1tb HDD on the system to start with. My impression is that, in order to take advantage of the speed of the ssd you want to have games and apps that you often use on that and music, video, photos on the slowr HDD. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.