What are cookies on a CPU for?

There's a misunderstanding here. "Cookies" as they are understood in the context of web browsing are not related to CPUs.

Cookies in web browsing are small text files that websites store on your computer to remember information about you and your preferences. They are used for things like:

* Login information: Remembering your username and password for websites.

* Shopping cart: Storing items in your online shopping cart.

* Personalized content: Tailoring the content you see based on your interests.

CPUs (Central Processing Units) are the brains of your computer. They execute instructions and process data. They do not have anything called "cookies" in the way that websites do.

However, CPUs do have caches. These are small, fast memory units that are used to store frequently used data and instructions so that the CPU can access them more quickly. Caches are similar to cookies in the sense that they store information, but they are used internally by the CPU and not by websites.

If you're interested in learning more about CPU caches, you can search for "CPU cache" or "cache memory" online.