Memory Ram is an electronic device that stores data using technologies such as semiconductors and magnetic media. The main function of the memory ram is to store programs and various data, and can complete the access of programs or data at high speed and automatically during the operation of the computer. With the memory, the computer has a memory function to ensure normal work. The memory in the computer can be divided into main memory and auxiliary memory according to the purpose, and there are also classification methods for external memory and internal memory.