How Do SSDs Work?
ExtremeTech, July 22nd, 2019
August 4, 2019,
Volume 256, Issue 5

Here at ExtremeTech, we've often discussed the difference between different types of NAND structures - vertical NAND versus planar, or multi-level cell (MLC) versus triple-level cells (TLC) and quad-level cells (QLC)

"Now, let's talk about the more basic relevant question: How do SSDs work in the first place, and how do they compare with newer technologies, like Intel's non-volatile storage technology, Optane?"

Joel Hruska writes in ExtremeTech, "To understand how and why SSDs are different from spinning discs, we need to talk a little bit about hard drives. A hard drive stores data on a series of spinning magnetic disks called platters. There's an actuator arm with read/write heads attached to it. This arm positions the read-write heads over the correct area of the drive to read or write information..."

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