What is Cache Memory in Operating System?

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

Cache Memory Definition

  • A memory that is small and faster than main memory and that is interposed between the processor and main memory.

    Operating Systems by William Stallings

Cache Memory Explanation

Cache memory also known as the CPU memory is a volatile very high-speed Static Random Access Memory (SRAM) that a computer processor accesses much faster compared to the access time of regular RAM. It stores frequently used data so that whenever a program needs that data, it is available at the closest and fastest instance.

Keep Learning Operating System Explanations

What is Response Time?

Response time is the elapsed time between an inquiry on a system and the response to the inquiry. Response time ...

What is Internal Fragmentation?

Internal fragmentation is the wasted space inside a block. The reason of this happening is the rounding up from the ...

What is Resident Set?

Resident set is that portion of the process image that is actually in real-memory at a particular time. It has ...

What is Kernel Mode?

There are two main modes i.e. Kernel mode and User mode. In kernel mode, the code that is being executed ...

What is Rendezvous?

Rendezvous is a data synchronization mechanism. It is a system call that allows two processes to exchange a single datum ...

What is Process Image?

A process image is an image of a process taken when the memory is allocated to it before execution. This ...