What is Boolean algebra? Write an essay on Logical gates, showing their graphical symbols and representation in Truth table. 

Boolean algebra is a branch of mathematics that deals with variables and operations on binary values, typically represented by 0 and 1, which are fundamental in computer science, electrical engineering, and digital logic design. Named after mathematician George Boole, who introduced the concept in the mid-19th century, Boolean algebra plays a critical role in the study of logic circuits and their behavior. It provides a formal framework for reasoning about binary variables and operations, enabling the simplification and analysis of logical expressions and the design of efficient digital systems.

At its core, Boolean algebra involves three primary operations: AND, OR, and NOT, which are used to manipulate binary values. The output of these operations depends on the input values, which are either 0 or 1. These operations follow a set of rules known as Boolean laws, which help simplify and solve logical expressions.

### Logical Gates and Their Operations

Logical gates are the physical implementations of Boolean operations in electronic circuits. These gates take one or more binary inputs and produce a single binary output. The primary logical gates are:

1. AND Gate:
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