What is the fastest access memory in a microcomputer?

The fastest accessed storage in a microcomputer is "memory". Memory is a storage space that can be directly addressed by the CPU. Its function is to store instructions and data, and can be directly and randomly accessed by the central processing unit (CPU). It is made of semiconductor devices and is characterized by fast access speeds. Memory can be divided into cache memory (Cache) and main memory. Among them, Cache has the highest access speed, followed by main memory.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

The fastest accessed storage in a microcomputer is "memory".

In the hierarchical structure of microcomputer memory, memory and external memory are two levels; among them, memory has the fastest access speed.

Memory is an important component of the computer, also known as internal memory and main memory. It is used to temporarily store operation data in the CPU, as well as data exchanged with external memories such as hard disks. It is the bridge between external memory and the CPU. All programs in the computer run in the memory. The performance of the memory affects the overall performance of the computer. As long as the computer starts running, the operating system will transfer the data that needs to be calculated from the memory to the CPU for calculation. When the calculation is completed, the CPU will transmit the results.

Memory is an important component of computer hardware. Its function is to store instructions and data, and can be directly accessed randomly by the central processing unit (CPU). It is made of semiconductor devices. The characteristic is fast access speed. Internal memory is a storage space that the CPU can directly address. All programs in the computer run in memory. The performance of the memory affects the overall performance of the computer.

The memory can be divided into cache memory (Cache) and main memory.

Main memory is the main body of memory. Cache is also made of semiconductor circuits. The access speed is very high, but the capacity is very small. Some are even built in the CPU chip.

So strictly speaking, Cache only plays the role of a buffer, which stores the information just read from the memory in the recent period. Whenever the CPU wants to access memory, it will first go to the Cache Cache to find it. If it does not, it will go to the host to do the actual access operation. Therefore, the highest access speed is Cache, followed by main memory (if there is no Cache, the highest one is the main memory).

For more related knowledge, please visit the FAQ column!

The above is the detailed content of What is the fastest access memory in a microcomputer?. For more information, please follow other related articles on the PHP Chinese website!