Final answer:
CPU stands for Central Processing Unit, which is the main component of a computer system that performs most of the processing inside the computer.
Step-by-step explanation:
The subject of the question is Computers and Technology.
The correct answer is a. processing.
CPU stands for Central Processing Unit. It is the main component of a computer system that performs most of the processing inside the computer. The CPU processes instructions, performs calculations, and manages data flow between different components of the computer.
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