• The statement "The CPU is often referred to as the 'brain' of the computer" is correct.
• The Central Processing Unit (CPU), often called the "brain" of the computer, is the primary component responsible for executing instructions and processing data.
• It fetches instructions from memory, decodes them, and carries out the corresponding operations.
• Core Components:
○ Control Unit (CU): Directs the operations of the processor, telling other components (memory, ALU, I/O devices) how to respond to instructions. It manages the flow of data within the CPU and between the CPU and other devices.
○ Arithmetic Logic Unit (ALU): Performs arithmetic (addition, subtraction, multiplication, division) and logical operations (AND, OR, NOT) on data.1 Modern CPUs often have multiple ALUs to enhance performance.
Study Notes
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