Virtual Memory

A way of using disk storage 

space

 to 

make

 the 

computer

 work 

a

 if 

it

 had more 

memory

.When 

a

 file 

or

 program is too big for the 

computer

 to work with 

in

 its 

memory

, part of the 

data

 is stored on disk.This 

virtual storage

 is divided into segments called pages; each 

page

 is correlated with 

a

 location 

in

 physical 

memory

, 

or

 RAM.When an 

address

 is referenced, the 

page

 is swapped into memory; 

it

 is sent back to disk when other 

page

 must be called.The program runs 

a

 if all the 

data

 is 

in

 memory.