Building Automation Systems (BAS) are computer-based systems that control and monitor the mechanical and electrical equipment in buildings. These systems can be used to control and monitor HVAC systems, lighting, security systems, and other building systems. BAS are designed to provide building owners and operators with the ability to manage their building’s energy efficiency, comfort, and safety. The systems can be programmed to adjust temperatures, lighting, and other equipment to meet the specific needs of the building’s occupants. BAS can also be used to monitor the building’s environment, such as temperature, humidity, and air quality, and to detect and respond to any irregularities. By using sensors and actuators, BAS can detect changes in the environment and respond accordingly, allowing for improved energy efficiency and comfort. Additionally, BAS can be used to provide alerts and notifications to building owners and operators when there are any issues or irregularities in the building’s environment. In summary, Building Automation Systems are computer-based systems that are used to control and monitor the mechanical and electrical equipment in buildings, allowing for improved energy efficiency, comfort, and safety.