A processor, also known as a central processing unit (CPU), is the "brain" of a computer. It is responsible for executing instructions and performing calculations that are necessary for the computer to function. The processor receives input from various sources, such as the keyboard, mouse, and storage devices, and processes this data to produce output that can be displayed on the screen or sent to other devices. The speed and performance of a processor are measured in terms of clock speed (measured in GHz) and the number of cores it has. A faster processor with more cores can handle more tasks simultaneously and perform calculations more quickly than a slower processor with fewer cores.
