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Photonics Dictionary

solid-state drive

A solid-state drive (SSD) is a storage device that stores data electronically using solid-state memory chips. Unlike traditional hard disk drives (HDDs) that use spinning disks and mechanical components, SSDs have no moving parts, which makes them faster, more reliable, and less susceptible to physical damage.

Key characteristics of SSDs include:

Flash memory: SSDs use NAND flash memory to store data persistently, which allows for faster access times and lower latency compared to HDDs.

Speed: SSDs offer significantly faster data transfer speeds and random access times, which can greatly improve overall system performance, especially in terms of boot times, file loading, and application responsiveness.

Reliability: Because SSDs lack moving parts, they are more durable and less prone to mechanical failures compared to HDDs.

Form factors: SSDs come in various form factors, including 2.5-inch drives for laptops and desktops, M.2 cards for compact devices, and PCIe cards for high-performance servers and workstations.

SSDs are widely used in both consumer electronics (such as laptops, desktops, and smartphones) and enterprise environments (for servers and data centers) to improve storage performance and reliability.
 

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