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Solid State Drive (SSD)

Definition - What does Solid State Drive (SSD) mean?

A solid state drive (SSD) is an electronic storage drive built on solid state architecture. SSDs are built with NAND and NOR flash memory to store non-volatile data and dynamic random access memory (DRAM). A SSD and magnetic hard disk drive (HDD) share a similar purpose.

A SSD is also known as a solid state disk (SSD) or electronic disk drive.

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Techopedia explains Solid State Drive (SSD)

SSD incorporates the storage technique implemented in microchip-based flash memory, where data is electronically stored on flash memory chips. An SSD is an entirely electronic storage device, and its physical assembly contains no mechanical objects.

A SSD has two key components:

  • Flash memory: Contains storage memory.
  • Controller: An embedded microprocessor that processes functions, like error correction, data retrieval and encryption. Manages access to input/output (I/O) and read/write (R/W) operations between the SSD and host computer.
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