Caching can help us store and retrieve information quickly from "summary" of Algorithms to Live By by Brian Christian,Tom Griffiths
Imagine you're at a library, searching for a book on a topic that has piqued your interest. Instead of having to go through the entire collection every time you need to reference that book, wouldn't it be convenient if the librarian had a system in place to quickly retrieve it for you? This is where the concept of caching comes into play. Caching is like having a personal assistant who anticipates your needs and keeps important information readily available at all times. By storing frequently accessed data in a place where it can be retrieved quickly, caching eliminates the need to start from scratch every time you require that information. In the context of computer systems, caching involves keeping copies of frequently accessed data in a memory that is faster to access than the original source. This way, when you need to retrieve that information, you can do so swiftly without having to wait for the entire system to search for it again. Think of it as having a bookmark in a book that takes you directly to the page you need, instead of flipping through every page to find the information you're looking for. By leveraging the principle of locality, caching ensures that the most relevant data is readily available when you need it, saving you time and effort in the process. Just like how a well-organized library can make it easier for you to find the books you need, caching helps streamline the process of accessing information in computer systems. By storing frequently used data in a cache, you can retrieve it quickly and efficiently, just like finding a book on your favorite topic in a well-curated library.
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