"Saving power means getting rid of refresh and associated circuitry.....as well as virtual management files."

note: If one is to get rid of DRAM/SDRAM requiring refresh,  they have no choice but to change the back ground environment devised on virtual management,  to one that is not.

 Managing a virtual background on SRAM would be very expensive. As the files grow through a virtual system,  so must the RAM.

e.Digitals back ground environment grows...however, it does not require any increase in RAM resource.

doni