Consumers need to learn to distinguish between memory and computer hard drives

Most people have a confusing concept between memory and hard drives. For example, some people like to say: My phone has 128RAM. If you encounter someone who is proficient in computers, they will go crazy. Actually, memory and hard drive are two completely different things. When it comes to memory, many people easily confuse memory sticks and storage cards in computers. In fact, the memory in a computer is the same as the running memory in a phone. They are all running memory, and memory can also be said to be the true memory of a computer, while a hard drive is the external storage of a computer, a type of storage device. Memory is not just a data warehouse. Except for a few essential programs in the operating system that reside in memory, the programs we usually use, such as Windows, Linux and other system software, as well as application software including typing software, game software, etc. Although the program code, including a large amount of data, is placed on external storage devices such as magnetic tapes, disks, CDs, and removable disks, any data in external storage can only be used after being transferred to memory< Br/>


Any input (from external memory, keyboard, mouse, microphone, scanner, etc.) and any output (display, printing, audio and video, writing to external memory, etc.) on a memory computer go through the memory computer. Memory. It can be achieved that memory is the bridge between programs and CPUs< Br/>


Memory, hard disk, and hard drive are one of the main storage media for computers. It consists of one or more aluminum or glass discs. The disk is covered with ferromagnetic material< Br/>


Most hard drives are fixed hard drives, permanently sealed and fixed inside the hard drive. Early hard drive storage media were replaceable, but today's typical hard drive is a fixed storage medium sealed inside the hard drive (except for filter holes used to balance air pressure). With development, mobile hard drives have also emerged and become increasingly popular, with more and more types. The hard drives installed on most microcomputers are referred to as "; Winchester; Technology, because they use Winchester technology& Ldquo; Chester hard drive;, Or abbreviated as&quo; Warm driver;. The so-called Winchester disk is actually a technology developed by IBM's research institute located on Winchester Street in Campbell, California, USA. It was first applied to IBM3340 hard drive storage in 1973, hence this technology is called Winchester technology< Br/>


Because the read and write speed of the hard drive is very slow, if it interacts directly with the CPU, sending data once takes more than ten seconds, and the CPU cannot do anything during this period. So, memories appeared. When you open a software, the computer copies the software from the hard drive to memory. The interaction between memory and CPU results in roughly the same speed. That's why we load the software slowly when we open it, but it runs smoothly when we open it. Simply put, a hard drive is just data