Then why is my 5400 RPM HDD not an SSD? Wikipedia: > The term is also used for devices in which semiconductor electronics which have no moving parts replace d

Then why is my 5400 RPM HDD not an SSD? Wikipedia: > The term is also used for devices in which semiconductor electronics which have no moving parts replace devices with moving parts, such as the solid-state relay in which transistor switches are used in place of a moving-arm electromechanical relay, or the solid-state drive (SSD) a type of semiconductor memory used in computers to replace hard disk drives, which store data on a rotating disk.[6]