CPU, or Central Processing Unit, is that component of a home PC or a server which performs each of the calculations. Every CPU runs at a certain speed and the larger it is, the faster everything will be processed, so in case you host resource-demanding web apps on a server, for example, a quick processor will enable them to be executed speedier, which will greatly contribute to the entire user experience. The more recent generations of CPUs have 2 and more cores, each one functioning at a certain speed to ensure a superior and speedier performance. This type of architecture permits the processor to manage different processes at one time or several cores to manage a single process if it needs additional computing power in order to be completed. Naturally, other factors including the amount of RAM or the connection that a specific server uses could also affect the overall performance of the sites hosted on it.