了解自己电脑的硬盘类型，可以更好的满足需求，把握数据的安全性，而且有些旧的硬盘（sell used SSD）还是具有价值，可以trade的。Mark一下。。。

The hard drive is the home for all the data that runs your computer. But you may not know that there are two different types of hard drives. Modern laptops and bulkier gaming PCs have embraced the solid-state hard drive (SSD). Older computers and a small handful of budget-friendly machines still rely on hard disk drives (HDD).

In this article, you can find answers to the following questions:

How to Identify a Hard Drive？

What’s the Difference?

How Storage Technology Measures Up？

What do You need to Know About Choosing a Hard Drive?

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