When we talk about cache memory in computing, we are talking about that amount of information that remains temporarily in the computer and that helps to acquire speed and efficiency when it is necessary to resort to a certain type of data. The name cache memory comes from French, which means "hidden" or "hidden".
The cache memory system is specially designed to serve the proper and organized storage of information in a computer. Its function is basically to keep in a temporary and accessible way those data that are required to perform certain functions or tasks. This availability allows each program or file to have immediate access to the necessary information and can thus dedicate itself to raising the level of efficiency of normal functions. Thus, the main memory has a great help that allows you to acquire higher performance speed and better results outside of its limited capacities.
The cache memory is normally structured in small fields where the necessary data is stored (up to one byte of space for each field or cell). It can take place as an integral part of the main memory as it can also be located outside it and be activated autonomously. Through the hit rate method or the average number of orders that each data receives, an order of the most required elements is established and therefore become more available, eventually deleting those that will not be used again.
When one speaks of the disk cache memory, he is referring to a process similar to that of the RAM cache memory that occurs in the same main memory. This procedure is another way to implement the cache memory system avoiding using the slow memory of the hard disk but keeping its interior active and providing you with data in a much more direct way.
