Some programs on your computer open instantly, while others require a few seconds to launch. This occurs due to the existence of various types of memory in computers, each operating at distinct speeds. This concept is referred to as the memory hierarchy. The memory hierarchy of a computer systematically arranges memory components from the fastest and most costly, such as CPU registers and cache, to the slowest yet largest, including hard drives and SSDs. The system enhances computational efficiency by positioning frequently accessed data in proximity to the processor while relegating less utilized data to more distant storage. A computer organizes data similarly to how one might store snacks: frequently accessed data is readily available, less-used data is stored in secondary locations, and bulk data is kept in primary storage.
