Main Memory

Main memory, also known as primary memory or RAM (Random Access Memory), is the internal memory of a computer where data and instructions are stored temporarily during processing. It is a volatile memory, meaning that its contents are lost when the computer is turned off or restarted. Main memory is an essential component of a computer system, as it allows the CPU to access data and instructions quickly and efficiently. The size of main memory affects the performance of a computer, as larger memory allows for more data to be stored and accessed at once, reducing the need for the CPU to access slower secondary storage devices such as hard drives or solid-state drives.
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