The central processing unit (CPU), also known as the processor, is the primary component of a computer that performs the majority of the processing tasks. It is the "brain" of the computer, executing instructions and performing calculations. The CPU is made up of one or more microprocessors that contain millions or billions of transistors, which are tiny electronic switches that can be turned on or off to represent the 1s and 0s of binary data.
The CPU receives input in the form of instructions and data from the computer's memory and performs a series of operations on that input. It then sends the results of those operations back to the memory or to an output device, such as a monitor or printer. The speed at which the CPU can perform these operations is measured in megahertz (MHz) or gigahertz (GHz). A higher clock speed generally indicates a faster CPU.
The CPU is an essential component of a computer, and the performance of the CPU can have a significant impact on the overall performance of the computer. It is often one of the most expensive components of a computer and can be upgraded to improve the performance of the computer.
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