What Is the Difference Between Declarative and Nondeclarative Memory?

Non-volatile memory (English: non-volatile memory, abbreviated as NVM) refers to the computer memory of the stored data that will not disappear when the current is turned off. In the non-volatile memory, according to whether the data in the memory can be rewritten at any time when using the computer, it can be divided into two major categories of products, namely ROM and Flash memory.