Complex sentence: The Ethernet physical layer has evolved over its existence starting in 1980 and encompasses multiple physical media interfaces and several orders of magnitude of speed from 1 Mbit/s to 400 Gbit/s. The physical medium ranges from bulky coaxial cable to twisted pair and optical fiber.
Split into simpler sentences: The Ethernet physical layer has evolved over its existence starting in 1980 and encompasses multiple physical media interfaces and several orders of magnitude of speed. The speed ranges from 1 Mbit/s to 400 Gbit/s, while the physical medium can range from bulky coaxial cable to twisted pair and optical fiber.