CPU, or Central Processing Unit, is that component of a home PC or a server which performs all the calculations. Each CPU functions at a particular speed and the larger it is, the swifter everything will be processed, so when you host resource-demanding web programs on a hosting server, for instance, a fast processor shall enable them to be performed more quickly, which will significantly contribute to the entire user experience. The modern generations of CPUs have two and more cores, each one working at a certain speed to ensure a better and speedier performance. This type of architecture permits the processor to control different processes at one time or a number of cores to address a single process if it needs more computing power to be completed. Obviously, other factors including the amount of RAM or the connection that a specific web server uses could also affect the efficiency of the sites hosted on it.