SanDisk Solid State Disk：

        Solid state disk not have the motor and rotating media of ordinary HDD, so it starts faster and has excellent shock resistance. Solid state disk needn’t head, the reading and writing speed of head is very quickly, the delay is very small. Because not have motor, it doesn’t have squeak of ordinary HDD while working. There is no mechanical installation in solid disk, so it produces small heat and you needn’t worry mechanical fault. Although it has these advantages, there also have many disadvantages, such as expensive, small capacity, battery short range, limited writing life and so on.

The main figure：

The main figure：

 The appearance of the whole graph：

 The appearance of the whole graph：

 The appearance of the whole graph：

 Profile：

 The local details：

 Effect diagram：