# The Full Form of ALU Meaning, and Definition

On this page, We are going to learn about the full form of ALU and the meaning of ALU, As well as the meaning, definition, and acronym for ALU in different categories. So you should read this post till the end.

## Full Form of ALU: Arithmetic Logical Unit

ALU Stands for Arithmetic Logical Unite. ALU is an integrated circuit within a CPU or GPU that performs arithmetic and logical calculations. Arithmetic instructions mean addition, subtraction, and transfer operations.

while logic instructions mean comparisons, such as AND, OR, XOR, and NOT operations. The ALU is the computer’s main logical unit.

It is the central processing unit (CPU) of the computer. The ALU takes the input data, manipulates it, and provides the results. It can be programmed to perform any sort of computation.

### What is ALU used for?

In a computer, the ALU functions as one of the building blocks of the CPU. The computer system uses it to perform all calculations. The ALU is the heart of the CPU.

Additional CPU components, such as the data bus, MU, and CU, help make work easier by efficiently providing input and data for the ALU.

Processing calculations

It is the ALU that performs all bit-level calculations. A large calculation is divided into smaller, singular, bit-based operations in order to process it faster.

Running processes

Calculations and memory manipulation are what run every computer process or software. Their ability to do so is enabled by the ALU.

Accessing Memory

In the case of complex tasks, rapid traversal of memory is required, and the ALU can help by reading individual chunks of memory rapidly. Addresses are computed based on what needs to be done.

### How does an arithmetic logic unit work?

The working mechanism of the Arithmetic Logical Unit (ALU) is explained below-

• The Control Unit instructs the ALU to start the operation.
• the ALU receives the instruction from the control unit.
• The ALU receives data from the memory at the instructions of the control unit. and starts processing.
• ALU Stores the results of processing in the register and accumulator.
• To store the obtained result/output back in the memory after completing the processing/calculation process. So that further results can be shown or obtained through output devices.

### How do you make an arithmetic logic unit?

ALU is made up of different types of logic circuits and their combination. these logic circuits are made up of many types of logic gates (AND, OR, NOT, etc.) Arithmetic operations and Logical operations mean addition, subtraction, multiplication, division, Equal to, Less than, Greater than, Less than equal to, etc.

The arithmetic logic unit can be performed only through logic circuits and their combination. Also, ALU has many accumulators and registers which are used to store the output result after the data processing.

There are some of the most commonly used acronyms, abbreviations, full forms, and the ALU meaning are listed in different categories below the table.