Data cannot be exchanged directly between the hard disk and the CPU. Reason: The CPU is fast and the external memory is slow. If the CPU is allowed to access the external memory, the CPU will waste a lot of time waiting for the return data from the external memory; and the read and write speed of the memory is much higher than that of the external memory, so the hard disk and other external memory The data in the memory must be transferred to the memory before it can be accessed.
The operating environment of this tutorial: Windows 10 system, Dell G3 computer.
Data cannot be exchanged directly between the hard disk and the CPU. What can directly exchange information with the CPU is the internal memory.
Reason: Because the CPU is fast and the external memory is slow, if the CPU is allowed to access the external memory, the CPU will waste a lot of time waiting for the return data from the external memory; and the read and write speed of the memory It is much higher than the external memory, so the data in the external memory such as the hard disk must be transferred to the memory before it can be accessed.
Internal memory is one of the important components in the computer. It is the bridge between external memory and the CPU. All programs in the computer are executed in the internal memory, so the performance of the internal memory has a great impact on the computer. Internal memory (Memory) is also called memory. Its function is to temporarily store operation data in the CPU and exchange data with external memories such as hard disks.
Internal memory is a storage space that can be directly addressed by the CPU and is made of semiconductor devices. It is characterized by fast access speed.
Memory is the main component in the computer, which is relative to external memory.
The programs we usually use, such as: Windows operating system, typing software, game software, etc. They are generally installed on external storage such as hard disks, but their functions cannot be used only because they must be transferred into memory to run in order to truly use their functions.
When we usually enter a piece of text or play a game, we actually do it in memory. Just like in a study room, the bookshelves and bookcases where books are stored are equivalent to the external storage of the computer, and the desk where we work is equivalent to the memory.
Usually, we store large amounts of data that need to be saved permanently on external memory, and put some temporary or small amounts of data and programs on memory. Of course, the quality of the memory will directly affect the running speed of the computer.
Memory is a place where programs and data are temporarily stored. When we use WPS to process a document, when you type characters on the keyboard, it is stored in memory. When you choose to save, the data in the memory will be saved to the hard (disk) disk.
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