It is typically organized into levels (L1, L2, L3), where L1 is the fastest and smallest, while L3 is larger and slightly slower but still much faster than main memory. Cache Memory in Computer Organization - GeeksforGeeks
It is physically located directly on the CPU chip or very close to it, reducing the distance data must travel. cache memory
It relies on the principle of locality , storing data that the processor is likely to need next or has recently used to minimize wait times. It is typically organized into levels (L1, L2,