A fiber optic line is a type of communication cable that uses thin strands of glass or plastic to transmit data as light signals. This technology allows for high-speed internet and telephone services, making it a popular choice for modern telecommunications. The light signals travel through the fiber, enabling fast and efficient data transfer over long distances. Fiber optic lines are less susceptible to interference compared to traditional copper cables, which enhances the quality of the signal. They are commonly used in various applications, including internet service providers, television broadcasting, and medical imaging, due to their ability to carry large amounts of data quickly and reliably.