RAM（ pronunciation is the same as ram）, which refers to the random access memory （random access memory, RAM） is also known as “ random storage ”, which is an internal memory that directly exchanges data with the CPU.
It can be read and written at any time, and it is very fast, usually as a short-term temporary data storage medium for operating systems or other programs in operation. The computer first loads the program or document requested by the user from the storage disk to the memory, and then accesses each information from the memory. Since many operations depend on memory, RAM capacity plays a vital role in system performance.
Working principle of memory:
In the computer, the memory works with the system processor and storage disk （ hard drive or solid hard drive ） to access and use data. For example, users want to access the data in the spreadsheet and perform some basic editing operations. The following are the internal.
Workflows of the computer：
1.Procedures and documents are located on the storage disk.
2.The system processor transmits program data from the storage disk to the memory for short-term access and use.
3.The processor access data from the memory, which largely determines the speed of the application and the efficiency of the computer to process multiple tasks.
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Different types of memory.
To further define the random access memory, the following will introduce you to different types of RAM for different uses. DRAM is a more common type of RAM; it refers to dynamic random access memory, and the dynamic part comes from constantly refreshing data. In addition, there is a SRAM, also known as static random access memory, which means that the information does not need to be refreshed. SRAM is fast, but the price is also higher. Both types of RAM are susceptible, that is, the information contained in the computer power will not be saved after it is turned off.
Inner capacity selection.
RAM runs on a computer and aims to provide short-term access to the data being used by users. The greater the memory capacity, the higher the speed of the application and the efficiency of the computer in handling multiple tasks. When selecting a computer or upgrading memory hardware, the user should choose a suitable size memory or memory bar according to the needs. The author recommends that ordinary users can install 2G memory bars or 4G memory bars. Users of graphic design and multimedia editing work must add at least 8G memory bars or open double channels Store, so that the overall memory reaches at least 16G.
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