How the Memory Works

The central processing unit (CPU) is often referred to as the brain of the computer. All computer work is done here. The chipset (chipset) supports the operation of the central processing Unit. Typically, a number of controllers are included within the chipset to regulate the transfer of data between the processor and other parts of the system.

The memory controller (Memory Controller) is part of the chipset. Responsible for establishing the information transmission between the memory and the central processing Unit. A bus is a data path in a computer that includes a number of parallel electrical routes connecting the central processor, memory, and all input. Bus design or bus structure, determine the data in the host board speed, according to the needs of the various parts of the transmission speed, a system also has different kinds of bus.

The memory bus connects the memory controller with the memory slot of the computer. The memory bus structure in the newer system includes a frontside buses (FSB) connecting the CPU to the main memory and a backside (BSB) connecting the memory with the L2 fast buffer storage area.

Memory speed when the CPU needs information in memory, it emits a requirement that the memory controller executes, and the memory controller then sends the request to the memory and reports the entire cycle to the CPU when the information is ready, from the CPU to the memory controller, The time it takes for memory to go back to the CPU can vary depending on memory speed and other factors, such as bus speed.

The memory speed is sometimes measured in megahertz, or at the rate of access, the actual time required to send the data in the form of a nanosecond (NS), whether in megahertz or nanoseconds, the memory speed represents the speed at which the memory module sends information when it receives the request.

Access Time (nanoseconds)

Access time from the memory module received data requirements to calculate the data ready to complete. The memory module indicates that the access time is usually between 50ns and 80ns, and that the smaller the number in the calculation of access time, the faster the speed is. For example, the memory controller to the memory requirements of data, the presence of 70ns after the response, the central processing unit in about 125 seconds after receiving information. So when the 70ns memory module is used, the total time required to receive the information from the CPU is 195ns. This is because the memory controller takes time to process the information transfer and the information must be transferred from the memory module to the CPU.

MHz (MHz) as a result of synchronous DRAM technology, memory chips can be synchronized with the computer's system clock, which is easier to compute at MHz and million cycles per second. Utsuch is also used for the speed of other parts of the computing system, making it easier to compare the speed and synchronization functions of different components. In order to understand speed more clearly, it is important to understand the system clock first.