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Processing Units refer to the central components in electronic systems responsible for executing computational tasks, including arithmetic and logical operations, data processing, and memory management. They can be found at the heart of computers, smartphones, tablets, and other digital devices, serving as the primary engines driving their functionality and performance. Processing Units encompass various forms and architectures, such as microprocessors, microcontrollers, digital signal processors (DSPs), field-programmable gate arrays (FPGAs), graphics processing units (GPUs), and application-specific integrated circuits (ASICs). These components typically consist of millions to billions of transistors, enabling them to manipulate massive amounts of data in parallel at high speeds. By transforming input signals into meaningful output, Processing Units empower users to interact with digital content, analyze complex datasets, and control the ever-expanding array of smart devices that populate our modern world.