What is the difference between a hard disk and a solid state drive?

A, refers to different

1, hard disk: by one or more aluminum or glass discs.

2, solid state hard disk: is made with an array of solid-state electronic memory chips and hard disk.

Second, the structure is different

1, hard disk: by the overlap of a group of platters, each platter is divided into an equal number of tracks, and from the outer edge of the "0" number, with the same number of tracks to form a cylinder, called the disk's column.

2, solid state drive: solid state drive within the main body is actually a PCB board, and this PCB board on the most basic accessories is the control chip, cache chip (some low-end hard disk without cache chip) and flash memory chips used to store data.

Three, shockproof performance is different

1, hard disk: are disk-type, data stored in the disk sector. The anti-drop performance is poor.

2, SSD: the use of flash memory particles (i.e., mp3, U disk and other storage media) made, so the SSD solid state drive does not have any mechanical parts inside, so that even in high-speed movement or even accompanied by flipping tilt will not affect the normal use of the situation.

Baidu Encyclopedia - Solid State Drive

Baidu Encyclopedia - Hard Disk Drive