# What Are The Functions Of ALU And Control Unit?

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 are the functions of ALU?

An arithmetic logic unit (ALU) is a digital circuit used to perform arithmetic and logic operations. It represents the fundamental building block of the central processing unit (CPU) of a computer.

## What are the functions of a control unit?

A control unit coordinates how data moves around a cpu. The control unit (CU) is a component of a computer’s central processing unit (CPU) that directs 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.

## Which two functions does ALU perform?

An arithmetic logic unit (ALU) is a combinational digital electronic circuit that performs arithmetic and bitwise operations on integer binary numbers. This is in contrast to a floating-point unit (FPU), which operates on floating point numbers.

## What is Alu explain with diagram?

An arithmetic logic unit (ALU) is a digital circuit used to perform arithmetic and logic operations. It represents the fundamental building block of the central processing unit (CPU) of a computer. Modern CPUs contain very powerful and complex ALUs.

## What are the components of ALU?

Functional Organization of an ALU

A typical ALU consists of three types of functional parts: storage registers, operations logic, and sequencing logic.

## What are the types of control unit?

There are two types of control units: Hardwired control unit and Microprogrammable control unit.

• Hardwired Control Unit –
• Microprogrammable control unit –

## What is control unit and its types?

Computer control unit. The control signals are usually transmitted by the part of the overall system bus called the control bus. There are two types of control units in computers: hardwired control units. microprogrammable (microprogrammed) control units.

## What are the components of control unit?

The two typical components of a CPU include the following: The arithmetic logic unit (ALU), which performs arithmetic and logical operations. The control unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary.

## What is 4bit ALU?

The SN54/74LS181 is a 4-bit Arithmetic Logic Unit (ALU) which can perform all the possible 16 logic, operations on two variables and a variety of arithmetic operations. • Provides 16 Arithmetic Operations Add, Subtract, Compare, Double, Plus Twelve Other Arithmetic Operations.

## What do you mean by 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).

## Is ALU A register?

The arithmetic/logic unit (ALU) of a processor performs integer arithmetic and logical operations. An integer used as input to an operation is called an operand. One operand for the ALU is always contained in a register. The other operand may be in a register or may be part of the machine instruction itself.