What are SSD and HDD, what's the difference?
SSD is a solid state hard disk HDD that is now the mainstream mechanical hard disk.
The difference between the two words, the working principle of different SSD which is composed of flash memory read speed of particles to more quickly than HDD but the service life of the SSD not HDD him for so long reading times is limited and is currently SSD high price now or in group HDD disk array more cost-effective

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