CPU, or Central Processing Unit, is that element of a personal computer or a web server that carries out all of the calculations. Each and every CPU runs at a particular speed and the higher it is, the speedier everything shall be processed, so if you host resource-demanding web applications on a hosting server, for example, a powerful processor will allow them to be executed more quickly, which will greatly contribute to the whole user experience. The modern generations of CPUs have two and more cores, each one operating at a certain speed to ensure a better and quicker performance. This kind of architecture permits the processor to control various processes all at once or a number of cores to manage 1 process if it needs additional computing power in order to be performed. Of course, other elements like the amount of RAM or the connection a specific hosting server uses may also affect the efficiency of the web sites hosted on it.