ELi5:why do memories(SRAM/DRAM) need continuous refreshing to store a bit of information?
In: Engineering
To provide a bit more details on capacitors:
Ever take a rubber balloon, rub it against your hair and stick it to the wall? That’s the same principle that a capacitor works on. Sure, the balloon will stick to the wall for a while. But not forever. For balloons in a good dry environment, maybe they’ll stick to the wall for a few hours. For the microscopic capacitors used to store the data for DRAM, it’s on the orders of tens of milliseconds.
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