Hard disk
What is a hard disk?
The hard disk drive (HD) is a device designed to store all types of data. It is always installed inside the computer and connected directly to its control unit on the computer's motherboard.
Why does a computer need a hard disk?
beginning A computer needs an operating system to allow everyone who uses it to interact with it and thus store all the data that needs to be stored.
The computer's operating system interprets both mouse movement and keyboard strokes, allowing the computer to be used.
Then you can use it for many purposes such as: browsing all types of Internet browsers and all programs and video games.
Of course, all of these programs and applications require storage space to install them on your computer, so you need a hard disk.
It provides several types of hard disks, whether fixed or external, with sufficient storage space to install and store everything you want.
In addition, we find that the hard disk is also necessary to install the computer's operating system and all the programs and other files that you want to keep on the computer.
If you download some types of files to your computer, they will be permanently stored on your computer's hard disk.
Examples of files stored on the hard disk include the operating system, regardless of its type, as well as all applications and programs, in addition to the user’s personal data.
Below we will mention to you some of the most famous international companies that manufacture hard disks.
First company: Seagate
Western Digital is one of the world's most famous companies that manufactures many types of hard disks.
The company has released many hard disks for various uses and with various storage capacities.
Second: Western Digital
Seagate is one of the largest global companies that needs no introduction and is preferred by many computer users.
Seagate has many, many great products.
Below we will explain the differences between different types of hard disks.
First: Non-Volatile Memory Express or M.2 NVME hard disk
The M.2 NVME hard drive is one of the most popular types of hard drives available on the market, as this type relies on SSDs.
The word SSD is an abbreviation for Non-Volatile Memory Express, and this type of hard disk is not connected to the computer via the traditional SATA.
However, it is connected in the same way as external cards, as both the graphics card and the sound card are 4 times faster than a regular SSD hard disk, but there are currently not many motherboards that support it.
This type of hard disk is often the size of RAM.
Features of M.2 NVME hard drive
- It doesn't get hot or make a lot of noise.
- It is also lightweight.
- In addition, its speed is distinctive in performing many tasks, work, and even games.
Second: Solid State Driver or SSD
This type of disk is a new and distinctive type, recently joined to other storage disks.
SSDs are distinguished by their speed, which is four times that of HDDs, but their price is somewhat high.
It is also one of the most important computer components required to increase the speed of your device for better performance, in addition to its lower power consumption than HDDs.
Features of the “Solid State Driver” hard drive, also known as SSD:
- This type of disc is characterized by its light weight and small size.
- It is also much faster than the HDD, i.e. 4 times faster, as Windows starts up in approximately 7 seconds from the time you press the start button.
- It also features a long service life and great endurance.
- Moreover, you will find its temperature during operation lower and there is no noise because it operates in complete silence.
Third: Hard Disk Drive or HDD
This traditional type of hard drive is very common and high quality in computers and is short for Hard Disk Drive.
This type comes in a 3.5-inch size for desktop computers and a 2.5-inch size for laptop computers.
It is also a good and suitable disk for storing many files and data of users.
Hard Disk Drive Features:
- A hard disk distinguished by its long lifespan, durability and speed during operation.
- It is also cheap compared to other types of hard disks .
- It is widely available in all markets and you can find it easily.
- There are very large storage spaces of up to 20 terabytes these days.
- There are also several types, such as: SATA, IDE, and SCSI, but the best and most modern of these types is the SATA type.
Fourth: External hard drive.
This type of external hard drive is one of the best and most important types of hard drives preferred or preferred by many people to own.
The external hard drive is small in size, about 2.5 inches, and it has a converter bracket inside that turns it into a USB port.
In addition, you can use it in many places, such as a large flash drive, so it is suitable for storing all types of data.
Moreover, you will find many users using it to save all their work to avoid damage to the internal hard disk or viruses.
Then it will be the perfect solution for you to store everything on this small hard drive.
External Hard Drive Features:
- It is easy to use and move.
- High transfer speed, especially if it is USB 3.0.
- Its storage space is also large compared to its size.
Here we have explained to you the definition of a hard disk, why a computer needs one, the most famous companies that produce it, and four examples of it.