Programmable Logic Controllers (PLCs) are specialized computing devices designed to control industrial processes and machinery. Unlike general-purpose computers, PLCs are built to operate reliably in harsh industrial environments, often running in real-time and handling tasks such as automation, data acquisition, and process control. They are a key component in industrial automation systems and are commonly used in a wide range of sectors including manufacturing, energy, and transportation. PLCs interface with sensors and actuators, gathering data and executing pre-programmed control functions based on that data. This enables them to manage a wide variety of tasks, from simple control systems like conveyor belts to complex chemical processing operations. Their adaptability, reliability, and ease of programming make PLCs an indispensable tool for modern industrial applications.