Difference between PRIMARY MEMORY and SECONDARY MEMORY

PRIMARY MEMORY and SECONDARY MEMORY

Memory is needed to store data and retrieve it when needed. Computers have two kind of memory, one is primary and another is secondary. Secondary memory is commonly known as just storage. It's used to store files when they are not needed by the processors. The examples are HDD, SSD, USB Drives, SD Cards etc.

Primary memory example could be RAM, ROM, L1 & L2 Cache, Registers etc. Processor works as a primary memory too since they have limited storage too.

PRIMARY MEMORY

It is the main memory where the data and information are started temporally.

Data is directly access by the processing unit.

Its volatile memory meaning data cannot be retained in case of power fallow.

Memory is started in semiconductor chips which are relative expensive.

It cap categorized into cache memory and random access memory [RAM].

It’s relatively faster than secondary because of its volatile nature.

It holds data or information that is currently being used by the processing unit.

SECONDARY MEMORY

It refers to the enter memory where data is stored permanently.

Data is cannot be accessed directly by the process.

It is non-volatile memory data can be return even after power fallow.

Memory is started in eternal storage devices such as hard disc flash E.T.C.

They are permanent storage devices such as CD, DVD, HDD, and FLOPPY DISC, etc

They are usually slower than primary memory it’s liked backup mend.

It stores substantial amount of data and information ranging from gigabytes of terabytes.