Arithmetic Logic Unit (ALU) PDF
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This document provides a brief overview of an arithmetic logic unit (ALU), focusing on its core components, such as binary adders and full adders. The document explains how these components are used in digital circuits to perform arithmetic and logical operations.
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**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. **Binary adder** is one of the basic combinational logic circuits. The outputs of a combinational...
**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. **Binary adder** is one of the basic combinational logic circuits. The outputs of a combinational logic circuit depend on the present input only. In other words, outputs of combinational logic circuit do not depend upon any previously applied inputs. It does not require any memory like component. Binary adder is one of the basic combinational logic circuits as present state of input variables Half adder The binary digits are 0 and 1. Hence, there must be four possible combinations of binary addition of two binary bits ![](media/image2.png) **Full Adder** Full adder is a conditional circuit which performs full binary addition that means it adds two bits and a carry and outputs a sum bit and a carry bit. ![Full Adder - an overview \| ScienceDirect Topics](media/image4.gif)