A transmission system is a network that transfers energy or information from one point to another. In the context of electricity, it involves high-voltage power lines that carry electricity from power plants to substations, ensuring that homes and businesses receive the energy they need. In telecommunications, a transmission system refers to the methods and technologies used to send data over distances, such as fiber optic cables or radio waves. These systems enable communication between devices, allowing for services like phone calls, internet access, and television broadcasting.