Difference between physical and virtual memory||Full comparison

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What Is the Difference Between Physical and virtual Memory?

The main difference between physical and virtual memory is that physical memory refers to the actual system RAM attached to the motherboard, but virtual memory is a memory management system that allows users to use programs larger than physical memory.

Memory management is an important function in the operating system. Allows processes to move back and forth between memory and hard disk during system execution. In addition, this process traces the entire memory space in order to assign processes and release memory. Physical memory is the primary memory with systems that are currently in use. On the other hand, visual memory expands the memory capacity of large memory systems using a hard disk.

Differences Between physical and Virtual Memory - Comparison Summary

What is Physical Memory?
Physical memory refers to the RAM or main memory on a computer. Physical memory is a dynamic memory. Therefore, it requires a continuous flow of power to store data. However, power failure and interference can erase data from visual memory. Also, this memory can be adjusted linearly. In other words, memory addresses increase in line form.

What is Virtual Memory?

Virtual memory is a logical memory. In other words, it is a memory management application made by an app. Virtual memory allows the editor to use more memory in programs than existing virtual memory. If the virtual memory is 4GB and the virtual memory is 16GB, the editor can use 16GB virtual memory to run the program. Using virtual memory, he can perform complex programs that require more memory than visual memory.

Key Differences - Physical Memory vs Visual Memory

The CPU can directly access physical memory. Manages applications in the to-do list. Usually, the hard disk stores programs. It takes extra time for the CPU to access the hard disk regularly to run applications. Therefore, those programs are pre-installed in the physical memory so that the CPU can use them faster. It takes less time to access data from virtual memory than to access data on a hard disk. After completing the execution, the programs return to the hard disk. Similarly, free memory can be assigned to a new system. When these programs are made, they are called processes

In addition, virtual memory expands the use of physical memory through the hard disk. It also blocks access to the main memory directly. Additionally, when accessing virtual memory, virtual memory addresses convert to the corresponding local address. Thus, visual memory ensures memory protection.

The Difference Between Physical and Physical Memory:

Definition

Physical memory, which is actual RAM, is a type of computer data storage that saves programs that are currently running. In contrast, virtual memory is a memory management technique that enables users of large physical memory. Therefore, this is a major difference between physical and mental memory.

Memory Type

Although physical memory is a real memory, virtual memory is a logical memory.

Speed

Speed ​​is another difference between physical and virtual memory. Physical memory is faster than virtual memory.

The plan

Another difference between real and virtual memory is that real memory uses the exchange system while visual memory uses pairing.

Size

Physical memory is limited by the size of the RAM chip; However, visual memory is limited by the size of the hard disk.

CPU

Virtual memory can directly access the CPU while virtual memory cannot directly access the CPU. So, this is another difference between physical and mental memory.

Conclusion

The main difference between physical and virtual memory is that physical memory refers to the actual RAM of a system that stores current applications, but virtual memory is a memory management system that allows users to perform programs larger than real memory. 

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