It increases the CPU utilization in the virtual memory.

It does not require any fixed limit on the degree of multiprogramming.

Virtual Memory is a logical unit of computer memory that increases the main memory capacity by storing or executing a large size program than the main memory.

It enhances the degree of multiprogramming in the virtual memory.

Virtual Memory allows the users to run more than one application at once.

Furthermore, it allows the user to load or store the data program or files larger than the size of the main memory. It is a logical storage unit of a computer that creates an illusion to execute a large program that may not be completely placed in the main memory. Virtual Memory is used in the computer memory to increase the storage capacity of the main memory.

It is very costly as it is a fast memory to access the data.

It has limited space to store the data.

Store the program in a cache memory that is executed within a short time.

It is the faster computer memory as compared to the main memory.

It stores frequently used data by the main memory.

The access time of files or instruction in the cache memory is less than the main memory.

Hence, it reduces the access time of the data from the main memory. When the program's copy is already available to the cache memory, it directly calls the processor to execute it otherwise, the program/files are fetched from memory. For example, whenever we execute a program by the processor, it fetches data from the main memory and fetched data to be copied to the cache memory. It is smaller in size, high-speed memory, and located near a processor core that stores the copies of the information or instruction frequently used by the main memory locations.įurthermore, it behaves like a buffer between the CPU and the main memory to hold those data or programs most frequently called by the CPU. It is a memory that helps to reduce the access time for files or data that is recently used by the main memory. Cache MemoryĬache Memory is a faster memory used by the central processing unit (CPU). We can say that when we want to access the secondary storage media or any file that must be loaded into the main memory from the secondary device. In computer memory, we can edit or update only the data that is in the main memory.

The main memory refers to physical memory, and it is known as RAM. It is a physical device capable of storing information temporarily like RAM (Random Access Memory), or permanently, like ROM (Read Only Memory). Next → ← prev Difference Between Cache Memory and Virtual MemoryĬomputer Memory is just like a human brain used to store data and instructions either temporarily or permanently.

Cpu usage vs physical memory