What is the primary function of the ALU?

What is the primary function of the ALU?

• A. To store memory addresses
• B. To perform arithmetic and logical operations
• C. To execute instructions
• D. To manage input/output operations

Answer: (B)

The primary function of the ALU, or Arithmetic Logic Unit, is to perform arithmetic and logical operations. This includes basic mathematical calculations such as addition, subtraction, multiplication, and division, as well as logical operations like AND, OR, NOT, and XOR. The ALU is a critical component of the CPU, as it processes data and performs the calculations required by programs, enabling the computer to carry out complex tasks. While the other options highlight different roles within the computer architecture, they do not accurately describe the specific function of the ALU. Storing memory addresses relates to the memory management unit, executing instructions pertains to the control unit within the CPU, and managing input/output operations is typically handled by other dedicated components like the input/output controllers or interfaces. Therefore, the function of the ALU is clearly centered around its capability to execute arithmetic and logical operations, making it essential for computing tasks.

The primary function of the ALU, or Arithmetic Logic Unit, is to perform arithmetic and logical operations. This includes basic mathematical calculations such as addition, subtraction, multiplication, and division, as well as logical operations like AND, OR, NOT, and XOR. The ALU is a critical component of the CPU, as it processes data and performs the calculations required by programs, enabling the computer to carry out complex tasks.

While the other options highlight different roles within the computer architecture, they do not accurately describe the specific function of the ALU. Storing memory addresses relates to the memory management unit, executing instructions pertains to the control unit within the CPU, and managing input/output operations is typically handled by other dedicated components like the input/output controllers or interfaces. Therefore, the function of the ALU is clearly centered around its capability to execute arithmetic and logical operations, making it essential for computing tasks.