What are registers, ALU, and control unit in a microprocessor?
In a microprocessor , the main functional blocks work together to process data and instructions. The registers , ALU (Arithmetic Logic Unit) , and control unit are core components that make this possible. 1. Registers Registers are small, high-speed memory units inside the microprocessor. Purpose: Temporarily store data , addresses, or instructions during execution Provide fast access compared to main memory Types: Type Function General-purpose Store operands and intermediate results Special-purpose Used for specific tasks (e.g., accumulator, flags) Program Counter (PC) Holds address of the next instruction Stack Pointer (SP) Points to top of the stack memory Status Register / Flags Stores results of ALU operations (e.g., zero, carry, overflow) 2. ALU (Arithmetic Logic Unit) The ALU is the part of the processor that performs mathematical and logical operations . Functions: Arithmetic : Add, subtract, multiply, divide Logic :...