Fiber-optic technology improves internet speed by using light signals transmitted through thin strands of glass or plastic fibers instead of electrical signals over copper wires. This allows for much higher bandwidth, enabling faster data transmission across longer distances without significant signal loss. Fiber optics is more resistant to interference and can support multiple data channels simultaneously, which enhances overall connectivity and speeds. As a result, users experience quicker load times for applications, improved video streaming quality, and a more reliable internet connection, making fiber-optic technology increasingly essential for high-demand internet services.