STORAGE DRIVE

 STORAGE DRIVE

What is the storage unit?

The storage unit (also called hard drive, SSD, or simply storage) is the component of the computer where all data is permanently stored.

It stores:

• The operating system (Windows, Linux, macOS, etc.).

• Programs and applications.

• Personal files: documents, photos, music, videos, etc.

• Temporary files and virtual memory of the system.

In summary, without a storage unit, a PC cannot function, because it would have nowhere to store or load the operating system and programs.

Types of storage units

1. HDD (Hard Disk Drive) – Mechanical hard drive

• Uses rotating magnetic platters and a reading arm.

• It is cheaper and has large capacity (1 TB, 2 TB or more).

• However, it is slower and more fragile to movement.

Advantages: low cost, large capacity.
Disadvantages: slow, generates noise and heat, can be easily damaged.

2. SSD (Solid State Drive) – Solid-state drive

• Has no moving parts. Uses NAND flash memory, like a USB drive.

• Much faster, quieter, and more resistant.

• The price per GB is higher, though it is becoming more affordable.

Advantages: fast system startup, better overall performance.
Disadvantages: lower capacity for the same price, limited wear (though in practice they last for years).

3. SSHD (Solid State Hybrid Drive) – Hybrid drive

• Combines an HDD with a small SSD section.

• The most frequently used files are stored in the SSD part to speed up access.

Advantages: balance between speed and capacity.
Disadvantages: not as fast as a full SSD.

4. NVMe / M.2 SSD

• A more advanced version of the SSD that uses the PCIe bus instead of SATA.

• Much faster (up to 10 times faster than a SATA SSD).

• Connects directly to the motherboard through an M.2 slot.

Advantages: extreme speed, compact size.
Disadvantages: higher price, requires a compatible motherboard.