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A RAM Chip (Random access memory) loses it's stored information when power is lost. A RAM chip can have data written to it.

A ROM Chip (Read Only memory) does not lose it's information when power is lost, but it cannot be written to*

* There are different types of ROM...

ROM (Read Only memory) gets "burned" and cannot be changed.

PROM (Programmable Read Only Memory) (not sure if they're used much any more) can be erased by exposing to ultra-violet light and re-programmed.

EPROM (Electrically Programmable Read Only Memory) - can be re-written electrically with special software.

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13y ago

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