**Registers**and the

**ALU**. The arithmetic/logic unit (

**ALU**) of a processor performs integer arithmetic and logical operations. For example, one of its operations is to add two 32-bit integers. The second operand (often in a

**register**).

Hereof, what is the role of the CU and ALU?

**ALU**and

**CU**are the heart of the CPU.

**ALU**is the Arithmetic and Logic Unit which performs all the arithmetic and logical operations such as addition, subtraction, logical AND, OR etc.

**CU**is the

**Control Unit**. It decodes the instructions, and controls all the other internal components of the CPU to make it work.

What is the definition of Alu?

Abbreviation of arithmetic logic unit, the part of a computer that performs all arithmetic computations, such as addition and multiplication, and all comparison operations. The

**ALU**is one component of the CPU(central processing unit).What are the main function of the control unit?

The control unit (CU) is a component of a computer's central

**processing**unit (CPU) that directs the operation of the**processor**. It tells the computer's**memory**, arithmetic/logic unit and**input**and**output**devices how to respond to a program's instructions.