What is TRIM?

A command by which the operating system tells an SSD which areas belong to deleted files. Knowing which data is no longer needed makes garbage collection more efficient.

Field: SRAM and flash memory

TRIM in the explanations

Questions that mention TRIM (3)

  1. Which command notifies an SSD of space freed by files deleted by the OS, making garbage collection more efficient?
  2. Which correctly describes "write amplification" in an SSD?
  3. Which technique gradually thins an exposed resist pattern with plasma to create lines narrower than the exposure limit?

Related terms

Garbage collection Write amplification NVMe Plasma Line edge roughness (LER) 3D NAND 6T SRAM cell Charge-trap cell Floating gate Fowler-Nordheim tunneling

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