Cache, pronounced "cash" (not "catch" or "cashay") stores recently used the information to make it readily available at a later date. Computers integrate several types of caching to run more effectively, thereby improving performance. common types of caches include browser cache, disk cache, cache, and processor cache.
1. Browser Cache - Most data from the Web page web browsers default cache. For example, when you visit a web page, the browser can cache the code
HTML, images, and any CSS or JavaScript files referenced by the page. When you browse to other pages that use the same images, CSS or JavaScript, your browser will not have to re-download the files. Instead, the browser can simply load from the cache, which is stored on your local hard drive.
2. Cache - When an application is running, it may cache some data in system memory, or RAM. For example, if you work on a video project, the video editor can upload video clips and audio tracks on the hard disk into RAM. Since RAM can be accessed much faster than a hard disk, which reduces delay when importing and editing files.
3. Disk Cache - Most hard drives and SSDs include a small amount of RAM used for disk cache. A typical disk cache for a hard drive 1 terabyte is 32 megabytes, while a 2TB hard drive may have a cache of 64 MB RAM This small amount can make a big difference in performance of the car. For example, when you open a folder with many files, references to files can be automatically stored in the disk cache. The next time you open the folder, file list can instantly load instead of taking a few seconds to appear.
4. Cache CPU - CPU caches are even smaller than disk caches. This is because the processor cache contains tiny blocks of data, such as frequently used instructions, that can be quickly accessed by the CPU. Modern processors often contain an L1 cache that is right next to the processor and L2 cache which is a little further. The L1 cache is the smallest (about 64 Kb), while the L2 cache may be about 2 MB in size. Some high-end processors even include an L3 cache, which is larger than the L2 cache. When a processor accesses data from a higher level cache, it can also move data to the lower level cache for faster access next time.
Most cover is done in the background, so you will not even notice it happening. In fact, the only caches above you can control is the browser cache. You can open your browser preferences to display the cache settings and change the size of the cache of your browser or clear the cache if necessary.