What does it mean to install memory?
RAM (random access memory) RAM -random access memory random access memory .
The contents of the storage unit can be taken out or stored at will as needed, and the access speed has nothing to do with the location of the storage unit. This kind of memory will lose its storage content when the power is turned off, so it is mainly used to store programs that are used for a short period of time. According to the difference in stored information, random access memory is divided into static random access memory (Static RAM, SRAM) and dynamic random access memory (Dynamic RAM, DRAM).
Extended information:
The storage matrix of dynamic RAM is composed of dynamic MOS storage cells. Dynamic MOS memory cells use the gate capacitance of the MOS tube to store information. However, because the capacity of the gate capacitance is very small and the leakage current cannot be absolutely equal to 0, the charge storage time is limited. In order to avoid the loss of stored information, the missing charge must be replenished regularly to the capacitor.
This operation is usually called "refresh" or "regeneration", so DRAM requires a refresh control circuit inside, and its operation is more complicated than static RAM. Despite this, because the structure of DRAM memory cells can be made very simple, using fewer components and low power consumption, it has become a mainstream product of large-capacity RAM.
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