What is persistent storage in Android?

What is the need for persistent storage?

Persistence storage is necessary to be able to keep all our files and data for later use. For instance, a hard disk drive is a perfect example of persistent storage, as it allows us to permanently store a variety of data.

What are 3 types of persistent storage?

Persistent storage (aka non-volatile storage) is any storage device that retains data after power to the device is turned off. Examples of non-volatile storage used to persist data are flash memory, hard disk, tape or optical media. Persistent storage also comes in the form of file, block or object storage.

Is persistent storage memory?

Persistent memory (PMEM) is a solid-state high-performance byte-addressable memory device that resides on the memory bus. Being on the memory bus allows PMEM to have DRAM-like access to data, which means that it has nearly the same speed and latency of DRAM and the nonvolatility of NAND flash.

What is persistent store?

A persistent store is a repository in which managed objects may be stored. You can think of a persistent store as a database data file where individual records each hold the last-saved values of a managed object.