CPU, or Central Processing Unit, is that component of a computer or a server that runs all of the calculations. Every single CPU runs at a certain speed and the higher it is, the swifter everything shall be processed, so when you host resource-demanding web programs on a hosting server, for instance, an effective processor shall enable them to be performed much faster, which will tremendously contribute to the whole user experience. The more recent generations of CPUs have two and more cores, each functioning at a certain speed to guarantee a superior and faster performance. This kind of architecture makes it possible for the processor to handle various processes at one time or a number of cores to handle one process if it requires additional computing power in order to be completed. However, other elements like the amount of RAM or the connection that a specific hosting server uses could also affect the overall performance of the web sites hosted on it.