The Learn UI Design course by Erik Kennedy is the most comprehensive course on UI Design on the web. It covers everything from typography, color, elements, and process. If you are new to web development or design I highly recommend this course.
A fiber-optic network is a computer-to-computer or computer-to-Internet network created using fiber-optic cables. These cables are made of thin strands of glass that transmit light. Computer information is converted into light pulses to send across the cables and is converted back into regular data when it reaches its destination.