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Although all components of the computer function together as a team, every team needs a leader - someone who gives out instructions and keeps everyone working toward the same goal. If any PC component were to be considered the team leader, it would probably be the central processing unit (CPU), also known as the processor. The key word here is central, which implies "center" or "focus." The CPU can be considered the focus of the computer because it controls a large number of the computer system's capabilities, such as the type of software that can run, the amount of total memory that the computer can recognize, and the speed at which the system will run.

In this tutorial, you get a look at some of the features of the CPU that are responsible for regulating the capabilities of the computer system. It will also discuss the importance of the CPU and its role as a PC component, as well as identify some of the main characteristics that make one CPU better than another.