Wasting Rom/Ram Space

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Is it wasting the rom's / ram's space cooking rom's without any programs?Isnt it when installed writes to rom and when we turn on device writes to the ram as using less memory?So we can use many programs at once because of more ram space?
Thanks...

The unused space in flash rom is wasted, if you burn programs into the space they are not taking any ram, they are always available and you are not using up your storage/program space , only when they run are they likely to take any ram, once closed they take nothing as far as I know.

I see thanks...