A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Magnoliophyta, also called angiosperms). The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs.
Sold State Drives, or SSD drives, are storage devices that do not use any movable parts and consist of flash memory that stores your data. Due to the speed of accessing data from memory, rather than searching for it on a mechanical device, SSD drives perform faster than their mechanical hard disk drive counterparts.
Fusion Drive is a combination of high-speed flash storage with a high-capacity conventional hard drive. The SSD portion is meant to enable faster booting and application launches, with OS X intelligently managing which files go where based on usage patterns.