Cache memory is a high-speed storage used by the CPU to store frequently accessed data. It sits
between the CPU and the main memory, providing quick access to information. When the CPU needs
data, it checks the cache first. If the data is present (cache hit), it is retrieved swiftly. If not (cache miss),
the CPU fetches it from the slower main memory. Cache memory takes advantage of locality, storing
nearby data as well. With different cache levels (L1, L2, L3), the CPU has a hierarchy of storage options.
By reducing memory access time, cache memory enhances system performance.
Cache memory is designed to exploit the principle of locality and reduce the CPU’s dependence on
slower main memory accesses. It plays a vital role in improving overall system performance by storing
frequently accessed data and instructions in a high-speed, closer-to-CPU memory. By minimizing the
time needed to retrieve data, cache memory allows the CPU to execute instructions more quickly,
leading to faster and more efficient computing operations
