How-To Geek

Non-volatile (Random Access) Memory

In contrast with the Random Access Memory (RAM) modules found in most computers and other devices, Non-volatile memory has a unique property–it retains the data contained within it even when the power is turned off.

Non-volatile memory takes a variety of forms, including on-board chips in embedded and small electronics (such as cable modems) where it is used to store micro operating systems and other data critical to the device. The flash memory in camera memory cards and flash drives is also a form of non-volatile memory as the contents of the card/removable drive persist over time in the absence of a power source.

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