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What is Main Memory in Operating System? PDF Download

Learn Main Memory definition in operating system with explanation to study “What is Main Memory”. Study main memory explanation with operating system terms to review operating system course for online degree programs.

Main Memory Definition

  • Memory that is internal to the computer system, is program addressable and can be loaded into registers.

    Operating Systems by William Stallings



Main Memory Explanation

Main memory is the physical memory that is the internal computer memory. The term main is used to distinguish it from other external mass storage devices such as hard drives and solid state drives. Main memory is basically the RAM of the computer. The computer can only modify the data that is present in the main memory/RAM.

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