What is a primary and secondary memory?

Primary memory is the internal working memory of a computer, and it includes RAM and the cache. Secondary storage is also called external memory, and it includes the computer's hard drive. read more

Primary memory vs Secondary memory. Processor access the primary memory in a random fashion. Unlike primary memory, secondary memory is not directly accessed through CPU. The accessing of the primary memory through CPU is done by making use of address and data buses, whereas input/ output channels are used to access the secondary memory. read more

Memory is a fundamental component of the computer that is categorized into primary and secondary memory. Primary memory is the main memory of the computer which can be directly accessed by the central processing unit, whereas secondary memory refers to the external storage device which can be used to store data or information permanently. read more