Signals have revolutionized the way we communicate and exchange information. From smoke signals used by ancient civilizations to the digital signals of today, the role of signals has evolved significantly. Signals transmit data, enabling seamless communication across vast distances. Modern technology relies heavily on signals, whether it’s the wireless signals that power our smartphones or the Wi-Fi signals that connect our devices to the internet. Signals enable instant messaging, video calls, and even streaming high-definition content. Moreover, signals are also utilized in industries such as transportation, healthcare, and weather forecasting. They have become an essential part of our daily lives, enhancing our ability to connect and access information with ease.