A:Answer It uses both SSD and traditional HDD components, in a very clever way. The SSD and HHD components appear as a single large hard drive. Apple's website says it uses the Fusion hard drive. Fusion drives keeps track of which files you use the most, including operating system files, your favorite apps, even documents and songs. The frequently-used files are moved to SSD, but you won't be aware of it. They'll just run faster. If you stop using a file, or use others more often, the old file will be moved back to the HDD, and the newer/more used files placed on SSD. It's nice because you get SSD speed for the things you do the most, but a full terabyte of storage for pictures, movies and all your other stuff that is accessed less frequently.
