Your computer also uses cache to store frequently accessed information in faster memory. If your operating system needs to access the same information on a regular basis, storing it on your hard drive, which runs much slower than your CPU, is inefficient and could impact your system’s performance. Therefore, modern processor chips include their own cache, typically in multiple, hierarchical levels. Like your web browser, when your CPU need information, it will first check the cache. If the information it needs is there, the data is available almost instantly. When you’re shopping for a new computer, it’s a good idea to research the CPU cache, because the more cache available, the less your computer will have to access slower memory, and the faster your computer will run.