Fiber-optic technology uses thin strands of glass or plastic to transmit data as light signals. This method allows for high-speed internet and telecommunications, making it a crucial component of modern communication systems. The advantages of fiber-optic cables include higher bandwidth, longer transmission distances, and immunity to electromagnetic interference. In contrast to traditional copper cables, fiber-optic cables can carry more data over greater distances without loss of quality. This technology is widely used in various applications, including internet services, cable television, and telephone networks, revolutionizing how we connect and communicate in today's digital world.