In a solid state drive, the primary storage medium is semiconductors unlike the magnetic media in a hard drive. It uses solid-state memory to store persistent data. Solid state is an electrical term referring to electronic circuitry, totally built of semiconductors. Initially this term was used to define those electronics items that were constructed from semiconductors rather than vacuum tubes. We seen that more advantages of solid state drive are, it is more benefited to use in hard drive.� The foremost advantage is that it does not have any moving parts. The traditional drives have drive motors to spin the disk heads and the magnetic platters. All the data in flash memory chips are stored to solid state. The worldwide solid state drive market is for real and generated nearly $400 million in revenues in 2007.This Solid state drives have been available for quite some time. In future most of the companies are producing this type of drive.� The cost of a SSD is equal to one entire notebook. The capacity for producing the flash memory chips also continuously to grow. The hard drive technologies allows for over 200 GB of data in a small 2,5 inch notebook hard drive.