They serve as both storage and RAM in remote sensors and similar devices but not as the main memory in computers, phones and tablets because they are more costly (see non-volatile memory).
solid state storage devices, such as USB memory sticks optical storage devices, such as CD, DVD and Blu-ray discs magnetic storage devices, such as hard disk drives Solid state storage is a ...
Scientists are searching for a material that could one day bring universal energy—that is, random-access memory and long-term solid-state storage—into one device. Leading candidates for this material ...