The memory stick is an important part of the computer, as mentioned above: it is something more than 10 cm long, 4 cm high, and 2 mm thick, like a small piece. Nowadays, mainstream memory sticks must have DDR and DDR2. DDR2 is better than DDR, and its read speed will be faster.
Under the same computer configuration, the larger the memory, the faster the speed without a computer. If you often play games, you will feel that, for example, when you want to enter a certain game, if your memory If your memory is relatively large, then the progress will be faster. On the contrary, if your memory is relatively small, then you have to wait slowly.
In layman's terms, the function of the memory module in the computer is equivalent to a bridge, which is responsible for the data exchange processing between the data on the hardware such as hard disk, motherboard, graphics card and the processor. All computer data is transmitted to the processor through the memory module and the processor for transmission and processing. Some friends may wonder why the data is not directly processed and exchanged with the processor? In fact, everyone only needs to understand the memory. The reading speed and storage speed are the fastest, and the speed of direct exchange with the data bus on the motherboard is very slow. You can also regard the memory as a data cache area. Having a high-speed cache area is also more conducive to the computer's data processing speed.
The main function of memory comes from the generation of memory: because the CPU runs fast, the hard disk is much slower than the CPU, so an intermediary is needed to balance the speed difference between the two. This balance is mainly the memory. When the computer is running, the most It is possible to transfer the things used from the hard disk to the memory for use by the CPU to increase the speed, but the cost of the memory is much higher than that of the hard disk, so after using it, you need to put the memory information back into the hard disk for storage. Big and faster memory can be the principle of faster computer memory
The memory bar is a channel connecting the CPU and other devices, playing a role of buffering and data exchange. When the CPU is working, it needs to read data from external storage such as hard disks. However, because the hard disk "warehouse" is too large and it is also "far" from the CPU, the speed of transporting "raw material" data is relatively slow, resulting in the CPU The production efficiency is greatly reduced! In order to solve this problem, people built a "small warehouse"-memory between the CPU and external memory.
Generally, the larger the memory, the faster the running speed. Computer upgrades generally require at least the memory upgrade. Like many people buy a memory stick immediately when they buy a computer.
The memory belongs to the internal storage of the computer, and the hard disk belongs to the external storage of the computer;
The memory is the workplace of the computer, and the hard disk is used to store temporarily unused information;
The memory is made of semiconductor materials, and the hard disk is made of magnetic materials;
The information in the memory will be lost when the power is off, and the information in the hard disk can be stored for a long time.
Both hard disk and memory are storage, one is internal and the other is external.
The difference between memory and hard diskThe difference between hard disk and memory is very big, here only talk about the most important three points: First, the memory is the workplace of the computer, and the hard disk is used to store temporarily unused information. 2. The memory is made of semiconductor materials, and the hard disk is made of magnetic materials. 3. The information in the memory will be lost when the power is off, and the information in the hard disk can be stored for a long time.
The relationship between memory and hard disk is also very close: here is just one point: the information on the hard disk is never used temporarily, should I use it? Please load memory! There is no direct data exchange between the CPU and the hard disk. The CPU only directs the hard disk to work through control signals. The information on the hard disk can only be processed after being loaded into the memory.
The memory is a transfer station for the exchange of hard disk data and CPU data in the computer. It is a temporary storage. The storage content is rewritten at any time. After the power is cut off, all the information in the memory is lost. The storage medium is the RAM type of the integrated block. The capacity is small.
The storage medium of the hard disk is magnetic storage, which is read and written by the magnetic head. The hard disk can store data for a long time without being affected by power failure. Large storage capacity In fact, computers process information through data transmission between CPU and memory. What resources the CPU needs are extracted from the memory. If it is not used temporarily, it will be cached in the memory and retrieved when it is used. However, the memory storage is limited, and some things that the CPU may not use for a long time will cause blockage in the memory. Therefore, the hard disk plays a role. The memory stores the things that the CPU does not use in the hard disk, and the memory stores the things that are needed.
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