The memory that can directly exchange information with the CPU is: internal memory. The internal memory is an integral part of the computer host. It directly exchanges information with the CPU. As long as the computer starts running, the operating system will transfer the data that needs to be calculated from the internal memory to the CPU for calculation. When the calculation is completed, the CPU will transmit the results. come out.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
The memory that can directly exchange information with the CPU is: internal memory.
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.
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.
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.
For more related knowledge, please visit the FAQ column!
The above is the detailed content of What is a memory that can exchange information directly with the CPU?. For more information, please follow other related articles on the PHP Chinese website!