Network range and speed

What was the speed of early networking technologies in kilobits per second?

What was the maximum range of early Ethernet networks before signal degradation became a problem?

What improvements in speed and range did later versions of Ethernet offer?

What wireless networking technology had a shorter range but operated at lower speeds than Wi-Fi?

What is a fiber optic cable, and how does it transmit data?

What was the maximum speed offered by 4G and 5G cellular data networks?

How have the speeds of Wi-Fi networks improved over time?

How have cellular data networks improved over time, and what has this enabled people to do?