SDD
4/16/2025
SDD - Solid State Disk Drive
The term SDD is not the standard designation for solid state drives. The correct term is SSD, which stands for Solid-State Drive. A solid-state drive (SSD) is a computer-generated, non-volatile, non-mechanical storage device based on memory chips. The most common type of SSD uses NAND-type flash memory to store data. SSDs differ from traditional hard disk drives (HDDs) in their high speed, low noise and resistance to mechanical damage, but have a higher cost and a limited number of rewrite cycles.
The main components of SSDs include:
- Flash memory: responsible for data storage.
- Controller: manages read and write operations.
- Cache: stores data temporarily.
- Connection interface: allows communication with the computer (e.g., SATA or NVMe).
SSDs are widely used in laptops, tablets, and desktop computers to improve system performance.