Demand paging is a memory management scheme that loads pages into memory only when they are needed, reducing the amount of physical memory required and improving system efficiency. This approach helps minimize latency and optimizes resource use by avoiding the preloading of unnecessary data, thus allowing for faster and more efficient execution of programs.

Demand Paging

Demand paging

memory management scheme

Physical memory, often referred to as RAM, is the hardware component in a computer that stores data temporarily for quick access by the CPU, enabling efficient processing of tasks. It differs from storage memory in that it is volatile, meaning it loses its contents when the power is turned off, allowing for faster read and write speeds compared to non-volatile storage like hard drives or SSDs.

physical memory

System efficiency refers to the ability of a system to achieve its objectives with minimal waste of resources, such as time, energy, and materials. It is often measured by the ratio of useful output to total input, and improving efficiency is crucial for optimizing performance and sustainability.

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