A memory device which does not lose its data when power is removed from the system.

means that it stores information on a silicon chip in a way that does not need power to maintain the information in the chip.

Memory chips that don't lose their data when power is switched off.

qualifies a memory which retrieves, when it is powered on, the state that it had when it was powered off; EPROM and FLASH memories, floppy and hard disks, and magnetic tapes, are examples of non-volatile memories

That portion of a material which does not evaporate at ordinary temperatures; the solid substances left behind after the volatiles have evaporated.

(1) Material resistant to vaporization. (2) The components of paint that do not evaporate as the paint dries.

The solid material that is left after total solvent evaporation.

The portion of a coating left after the solvent evaporates; sometimes called the solids content.