What are the advantages of computer internal memory compared to hard disk memory?

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 run in the memory, so the performance of the memory has a great impact on the computer. (Recommended Learning: Web front -end video tutorial )

Memory (Memory) is also known as the memory and main memory. Its function is to temporarily store the calculation data in the CPU , as well as data exchanged with external storage such as hard drives.

As long as the computer is running, the CPU will transfer the data that needs to be calculated into the memory for calculation. When the calculation is completed, the CPU will transmit the results. The operation of the memory also determines the stable operation of the computer. The memory stick is composed of memory chips, circuit boards, gold fingers and other parts.

In the computer structure, there is a very important part, which is the memory. Memory is a component used to store programs and data. For computers, only with memory can they have memory functions and ensure normal operation.

There are many types of memory, which can be divided into main memory and auxiliary memory according to their uses. Main memory is also called internal memory (referred to as memory, and Hong Kong and Taiwan call it memory).

Memory, also called main memory, is a storage space that can be directly addressed by the CPU and is made of semiconductor devices. The characteristic of memory is fast access rate. Memory is the main component in the computer, relative to external memory.

The programs we usually use, such as Windows operating system, typing software, game software, etc., are generally installed on external storage such as hard disks, but their functions cannot be used only because of this. They must be adjusted Only when it is run in the memory can its functions be truly used. When we usually enter a piece of text or play a game, it is actually done in the 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 the memory. Usually we store a large amount of data that we want to save permanently on the external memory, and put some temporary or small amounts of data and programs on the 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 documents, when you type characters on the keyboard, it is stored in the memory. When you choose to save, the memory The data in will be stored in the hard (magnetic) disk.

Memory generally uses semiconductor storage units, including random access memory (RAM), read-only memory (ROM), and cache (CACHE). Simply because RAM is the most important memory among them.

(synchronous) SDRAM synchronous dynamic random access memory: SDRAM is 168 pins, which is the memory currently used by PENTIUM and above models.

SDRAM locks the CPU and RAM together through the same clock, so that the CPU and RAM can share a clock cycle and work synchronously at the same speed. The rising edge of each clock pulse begins to transmit data, speed 50% higher than EDO memory.

DDR (DOUBLE DATA RATE) RAM: An updated product of SDRAM. It allows data to be transmitted on the rising and falling edges of the clock pulse, so that the speed of SDRAM can be doubled without increasing the clock frequency.

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