Final answer:
The part of the CPU that retrieves instructions and raw input data for processing is the Control Unit (CU). This component coordinates the functions within the microprocessor, which is critical for computing operations, similar to how the brain processes and directs responses in the body.
Step-by-step explanation:
The CPU consists of two main components: the Control Unit (CU) and the Arithmetic Logic Unit (ALU). The part of the CPU that retrieves instructions and raw input data and sends that data for processing is known as Control Unit (CU). The CU acts as a coordinating entity within the microprocessor, directing the operation of the processor.
Microprocessors, such as those found in personal computers and various electronic devices, hold a computer's processing power in a single integrated circuit, which combines the capabilities of the CU and ALU to perform a myriad of tasks. A microprocessor is crucial in the retrieval and manipulation of data, enabling devices to perform useful functions efficiently.
Comparing to the human brain, the microprocessor in many ways functions similarly to how the brain processes information, where memory and senses are like input devices, and our actions and thoughts are the outputs. The CU in a CPU handles these processes, akin to how the brain's neural pathways might direct thoughts and reflexive actions.