What is the difference between solid-state and mechanical hard drives?

The difference between SSD and mechanical hard disk

Solid-state hard disk and mechanical hard drive to distinguish between many, first of all, from the shape, the mechanical hard disk is larger than the solid state hard disk, so the weight is heavier than the solid state hard disk, followed by the price, solid-state hard disk price than mechanical hard disk much more expensive. In general, desktop computers are the basic mechanical hard drive, but with the development of solid-state drives, with the market and the various needs of users, solid-state hard disk has gradually become the focus of users to buy.

Solid-State hard disk applications than the use of mechanical hard disk more extensive, solid-state drives in the electronic world plays a very important part, very much attention by the industry, and mechanical hard disk use range is not as flexible as solid-state hard disk. With the largest volume of 1.6TB on a solid-state drive, it is rumored that IBM has begun testing 4TB of high-speed solid-state hard drives, compared to the size of a mechanical hard drive by TB capacity.

The internal parts of the mechanical hard disk are more complex than the solid-state hard disk, there are no motors and fans inside the solid-state hard disk, so in this aspect the solid-state drive will have a great advantage over the mechanical hard disk, while the solid-state hard disk is much quieter than the mechanical hard disk in the work. In addition to the power consumption, solid-state hard drives are also lower than the traditional mechanical hard disk.

In terms of the important reading and writing speed of the hard disk, solid-state hard disk read and write speed than mechanical hard disk read and write speed is high, generally twice times the speed of reading and writing ability, SLC only 100,000 times of reading and writing life, Low-cost MLC, read and write life only 10,000 times, compared to the traditional hard disk has no advantage. It is also important that solid-state hard disk is the use of flash chips inside the chip, while the mechanical hard disk is the data stored in the disk sector, when the use of the collision problem, the SSD can reduce the possibility of data loss to the minimum, compared to the mechanical hard drive will be much worse.