CPU Caches
Have you ever bought a bunch of stamps so you don’t have to go to the post office every time you need to mail a letter? Caches are like that, but for computers. Instead of stamps, they store copies of the data that your computer uses most often. Why do we need caches? We need caches to improve the performance of applications and systems. Caches store copies of frequently accessed data in a faster memory, so that the CPU can access it more quickly. This can significantly reduce the amount of time it takes for applications to load and respond to user input. ...