How Caching Works

Caching is a form of computer technology that utilizes part of the memory on any device. Most computers have L1 and L2 cache systems, and newer models add a L3 cache system. Memory, hardware and software all have forms of cache. This allows for the computer to utilize parts of its memory in certain aspects for general use of the overall device. This memory works with each other, as well as for itself, to accelerate the ability to easily use a computer system.

The technology behind cache allows a faster, smaller memory to help boost the power of slower, larger memory. It helps makes the amount of RAM in your company work faster than if it was simply the primary source of memory in your computer. It is possible to have several layers of cache working to help utilize memory sources for different objects at a given time. Depending on your system set-up out of the box, you computer may already come preloaded to utilize memory this way.

Computers measure time in a small fraction of the way humans measure it. When a microprocessor on the motherboard accesses the primary memory - the RAM - it does so at a slower speed than most microprocessors. This is where the cache comes in handy. The cache is located in a bank on the motherboard, and it is much quicker than RAM, which allows it to be used to help boost the RAM's potential output in accessing areas of the computer that might otherwise be bogged down by how slow it can be.

When it comes to the Internet, many web pages you visit are cached to the hard drive which allows you to view the pages quicker than if you were to connect to the server that houses that page every single time. During the caching process, a web page's most consistently non-changed components are saved to the disk drive, and when you visit that page, they are loaded from the computer as opposed to the server.

Caching is a much more technical process than it has been explained here, but this is just the basics of understanding it. It is an integral part of any computer and Internet experience. Without it, using a computer in any way, shape or form would be slow and cumbersome.