Solid State | Drive

: The mid-1990s saw the introduction of the first modern flash-based SSDs that didn't require batteries to retain data.

: In the 1970s and 80s, SSDs were primarily RAM-based and obscenely expensive, used only in supercomputers.

While modern SSDs became mainstream in the late 2000s, the concept dates back to the 1950s with technologies like magnetic core memory.