CPU, or Central Processing Unit, is that component of a personal computer or a hosting server that carries out all of the calculations. Every single CPU runs at a particular speed and the larger it is, the sooner everything will be processed, so if you host resource-demanding web apps on a hosting server, for instance, a quick processor shall allow them to be executed much faster, which will greatly contribute to the entire user experience. The current generations of CPUs have two and more cores, each working at a particular speed to ensure a better and speedier performance. This kind of architecture enables the processor to control a variety of processes at one time or a number of cores to handle one process if it needs more computing power in order to be completed. However, other factors like the amount of RAM or the connection that a given hosting server uses may also affect the overall performance of the Internet sites hosted on it.