To store our data, it requires some kind of storage whether it is internal storage or external storage, internal storage can also be seen on our phone and also in our laptop and computer. Talking about External Stories, we can increase the storage of our phones by using a micro SD card for our phones, in the same way, we can use our computer Also use external hard disks for external storage.
![images (2).jpg](https://cdn.steemitimages.com/DQma8Fmhs5m43aduMJmGLboG3sqSenAYdqjKfCGvNWMoP2p/images%20(2).jpg) ![download (1).jpg](https://cdn.steemitimages.com/DQmdpf2hpEvw4hTbquVQEDvweu74zuT7gPZETrFRaUiLZ8M/download%20(1).jpg)

You must have heard the name of HDD and SDD before or after taking a laptop. Although both of these are for storage, if you want to take a laptop, then you should know about HDD and SSD, what is the difference between them and what's great and better than these

As I said, both of them work in our laptop storage. But there is a lot of difference in both of these. Whether they are doing work or speed or in the price, they are different from each other.

### What is the HDD and how it works?

HDD is a mechanical storage device that has moving plates in it, as you can see in the photo, there are DVD-like plates and these plots are stored in the data itself. And there are many plots in it and there is a Revolving Head with which the data is read from these plots.
![download.jpg](https://cdn.steemitimages.com/DQmWsRAGZJ5xYU8naLbSQGZaZGW4yyeYcgmgKQDX67pqz1X/download.jpg)

### Advantages of HDD

1. HDD is very cheap
2. High coverage of HDD is much easier
3. Can Purchase from Anywhere

### Disadvantage of HDD

1. Data Read Write Speed Reduced
2. Power uses more 
3. After 5-6 years it starts getting difficult because it is a mechanical device and moving parts inside it.
4. Size is larger and weight is also high.
   

### What is the SSD and how it works?

SSD is like a kind of chip or memory card as you can see in the photo above. There is no moving part in it. Whatever the data is stored in the whole chip itself.
![images (6).jpg](https://cdn.steemitimages.com/DQmYfh2qUm9m6mmFdPJmGu7bQ2hqCJppaD7ehXHc9MgjuwV/images%20(6).jpg)

### Advantage of SSD

1. As it is saved in the entire data chip, its speed is very high and Fastly Reed and write.
2. Makes little use of power
3. There is not much larger size and the weight is also very low.
4. Because there are no moving parts in it, there is very little chance of getting spoiled

### Disadvantage of SSD

1. Very expensive than HDD
2. SSD of much capacities is very low. 
3. Normally not available in the market.

### What is SSHD
![images (3).jpg](https://cdn.steemitimages.com/DQmZoUASPWxNZ5VrEQkBRPN4zxbUTyMaXzaniiZSZMar2En/images%20(3).jpg)

This is the combination of both of them both that combines both of them. It is a full form of "Solid State Hard Drive" in the new laptops and also with any other laptop. In this, you will get 1TB SSD or 30 GB SSD ( Not Fixed) from which you can install your own operating system in the SSD and save your file in HDD. This will work fast on your computer because the speed of SSD is very high and you can work comfortably on your computer.

If you want to take a new laptop then make sure that it has an SSD and if you have an old computer or laptop whose speed is very low then you can increase the speed by putting SSHD or SSD into it.