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NVRAM related queries

+1 vote
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I have below queries about NVRAM, Can someone please help in understanding this?

  1. Is NVRAM part of RAM or a separate hardware?
  2. Set value in NVRAM key can be changed by outside source?
  3. Considering NVRAM as part of RAM then buying new RAM is lot more cheaper than purchasing license for the product, If customer wants then they can change RAM and use product infinitely, Still most of the company/products depended on NVRAM, Why?
posted Dec 4, 2018 by anonymous

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1 Answer

+1 vote
 
Best answer

Non-Volatile Random Access Memory." or NVRAM is a type of RAM that retains data after the host device's power is turned off. Its generally different hardware than RAM and used generally to store hardware settings that need to be maintained when the computer is shut down. The value of NVRAM can be changed by the external access (flash drive is also used as NVRAM in some cases).

Last part of the question is not clear...

answer Dec 28, 2018 by Salil Agrawal
Thanks, Last part of the question is, ... If NVRAM values can be changed externally then why companies uses NVRAM's to store license related information?
Not sure but there are two types of NVRAM in the market
SRAM - Common examples include the BIOS settings on Windows computers or the PRAM settings on Macintosh systems. SRAM typically uses a battery to retain memory, if the battery dies or is disconnected, the data stored in the SRAM will be lost.
EEPROM - stores data using electrical charges that maintain their state without electrical power and does not need a battery or other power source to retain data. The most common type of EEPROM is flash memory.

Not sure if NVRAM is used to store license related information...
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