How do pen drive and memory cards keep the memory without electricity or batteries?
Question by JerryMalta: How do pen drive and memory cards keep the memory without electricity or batteries?
How do pen drive and memory cards keep the memory without electricity or batteries. How does the memory keep in there?
Best answer:
Answer by Stephen M
There are all sorts of memory types and some are non volatile memories that retain information even when power is removed.
http://en.wikipedia.org/wiki/Non-volatile_memory
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