What's the difference between Flash and RAM?

1, RAM: Also called main memory, it is an internal memory that directly exchanges data with CPU.

2.Flash: flash memory (English: Flash memory) is an electronically erasable programmable read-only memory, which allows multiple erasures or writes during operation.

Second, the characteristics are different.

1, RAM: You can read and write at any time (except when refreshing), which is very fast. It is usually used as a temporary data storage medium for operating systems or other running programs.

2. Flash memory: mainly used for general data storage and data exchange and transmission between computers and other digital products, such as memory cards and USB flash drives.

Third, the principle is different.

1, RAM: When reading or writing data in memory, the time required has nothing to do with where the information is located or where it is written. On the contrary, when reading or writing information in a sequential access storage device, the time required is related to the location. It is mainly used to store operating system, various applications, data and so on.

2. Flash memory: Flash memory technology is used to store electronic information, and it is used as a storage medium in small digital products such as digital cameras, palmtop computers and MP3 players, so it looks compact.

Baidu encyclopedia-flash memory

Baidu Encyclopedia-Random Access Memory