Exactly. The "free" memory is just the available memory, not the empty memory.
In fact memory that has been overwritten can still be recovered.
That's why there is software that "clean" your disk if you want, and it takes a while because basically what it does is just overwrite over and over again the disk until recovery is almost undoable.
Neuro0Cancer t1_iy3iplc wrote
Reply to comment by unlikemike123 in eli5 How is computer memory deleted? by unlikemike123
Exactly. The "free" memory is just the available memory, not the empty memory.
In fact memory that has been overwritten can still be recovered.
That's why there is software that "clean" your disk if you want, and it takes a while because basically what it does is just overwrite over and over again the disk until recovery is almost undoable.