What is the main function of memory in the computer?

Many people are very concerned about these issues: What is memory? What is the role of memory in the computer? When you have been very confused, please read the following content, maybe you will suddenly become more open. I hope that these analyses will help you improve your basic knowledge of computers. Memory is a bit more common, it is a cache, it will be free from the data exchange bottleneck between the hard disk and the CPU is too large, but now the hard disk is still the performance bottleneck of the computer, and the speed of the hard disk is just like the memory. Memory is the main component of a computer, and it is relative to external memory. The programs we usually use, such as Windows98 system, typing software, game software, etc., are generally installed on the external storage of the hard disk, but only this can not use its function, you must put them into memory to run, in order to truly Using its features, we usually enter a paragraph of text, or play a game, in fact, all in memory. Usually we store a large amount of data to be stored permanently on external storage, and put some temporary or small amount of data and programs in memory. In the middle of the central processor and the hard disk play a role in the transition, specifically, the central processor processing data is fast, but the hard disk is limited by its physical structure, the speed is relatively slow, how to get in the middle of this fast and slow Balance, it generates memory. First, the data in the hard disk is read and written into the memory, and then the processor processes the data in the memory. Conversely, the data in the memory can also be written to the hard disk. To put it simply, if the hard drive is a large bookshelf for all your books, then the memory is like your desktop. When you read the book, take the book and put it on the desktop. After reading it, you will put it back on the bookshelf. That is to say, the memory is a memory that temporarily stores programs and files that are often used and must be used by the computer. When the power is turned off (powered off), the contents of the memory are No more.