keskusmuistiin

Keskusmuistiin refers to the primary memory system in a computer, commonly known as RAM (Random Access Memory). This is where the computer temporarily stores data and instructions that are actively being used by the central processing unit (CPU). Unlike secondary storage like hard drives or SSDs, which are designed for long-term data retention, main memory is volatile, meaning its contents are lost when the power is turned off.

The speed at which the CPU can access data from main memory is crucial for overall system performance. When a program is launched or a file is opened, its necessary components are loaded from secondary storage into main memory. The CPU then fetches instructions and data directly from this faster memory for processing. The amount of main memory available, often measured in gigabytes, directly impacts how many applications can run simultaneously and how smoothly they operate. Insufficient main memory can lead to the system resorting to using slower secondary storage for temporary data, a process known as swapping or paging, which significantly degrades performance. Therefore, main memory is a fundamental component for the efficient operation of any modern computing device.