Introduction to CPU (Central Processing Unit) Key Concepts and Components
What is a CPU? CPU stands for Central Processing Unit. It is the main component that performs most of the processing inside a computer. Key Components of a CPU: - ALU (Arithmetic Logic Unit) - Control Unit - Registers The CPU executes instructions from programs and manages data flow.
Functions of a CPU 1. Fetching: Retrieves instructions from memory. 2. Decoding: Interprets the instructions. 3. Executing: Performs the operations. 4. Writing back: Stores the results back to memory.