How does a computer remember when the power is gone?
A tablet can sit completely switched off, then later open photos and apps whose bit patterns were held in physical storage states while no current was flowing.
Talk about it
- Name the two memory jobs in kid words: the thinking desk and the save drawer.
- Why does the computer copy patterns between them instead of choosing only one?
- Find another tool that uses a fast temporary workspace and a slower long-term store.