The files and data processed by the computer can only be used by the CPU after they are read.

The files and data processed by the computer can only be used by the CPU after being read into the "memory". The memory is used to temporarily store the calculation data in the CPU and the data exchanged with external memories such as hard disks. As long as the computer starts running, the operating system will transfer the data that needs to be calculated from the memory to the CPU for calculation. When the calculation is completed, the CPU will transfer the results. Send it out.

The operating environment of this tutorial: Windows 10 system, Dell G3 computer.

The files and data processed by the computer can only be used by the CPU after being read into the "memory".

Memory is one of the important components of the computer, also known as internal memory and main memory. It is used to temporarily store calculation data in the CPU and exchange data with external memories such as hard disks. It is the bridge between external memory and the CPU. All programs in the computer run in the memory. The performance of the memory affects the overall performance of the computer. As long as the computer starts running, the operating system will transfer the data that needs to be calculated from the memory to the CPU for calculation. When the calculation is completed, the CPU will transmit the results.

The operation of memory also determines the overall operating speed of the computer.

Classification

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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