CPU, or Central Processing Unit, is that element of a personal computer or a server which runs all of the calculations. Every single CPU runs at a particular speed and the larger it is, the faster everything shall be processed, so when you host resource-demanding web programs on a hosting server, for example, a powerful processor shall allow them to be performed speedier, which will significantly contribute to the entire user experience. The current generations of CPUs have two and more cores, each one working at a specific speed to ensure a better and swifter performance. This type of architecture permits the processor to manage a variety of processes concurrently or several cores to control a single process if it needs extra computing power to be carried out. Obviously, other variables including the amount of RAM or the connection that a particular server uses may also affect the efficiency of the websites hosted on it.