Dictionary
vir'tual stor'age
Computers.
a system whereby addressable memory is extended beyond main storage through the use of secondary storage managed by system software in such a way that programs can treat all of the designated storage as addressable main storage. Also called
vir'tual mem'ory. Cf.
real storage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.