Primary
Memory
Primary memory is computer memory that a processor or computer accesses first or directly. It allows a processor to access running execution applications and services that are temporarily stored in a specific memory location.
Primary memory is also known as primary storage or main memory.
Primary memory is a computer system's volatile storage mechanism. It may be random access memory (RAM), cache memory or data bus, but is primarily associated with RAM.
As soon as a computer starts, primary memory loads all running applications, including the base operating system (OS), user interface and any user-installed and running software utility. A program / application that is opened in primary memory interacts with the system processor to perform all application-specific tasks.
Primary memory is considered faster than secondary memory.