Nostalgia time means time to dig up old stuff.
First, some of the PC CPUs that I have used:
In the early days, there were various networking topology. You won't find the token ring network card anymore:
Network cards are for LAN. Nowadays, we use fibre for WAN. In the early days, you use a modulator/demodulator, also known as a modem. This one is one of the last of the modem technology:
DSL came along next, and one of the best of its days was the Efficient's Speedstream:
Most wired devices are on gigabit Ethernet now. Before that were the fast Ethernet, which has speeds of 100 megabits. And before fast ethernets were the 10BaseT cards. Here is a 10 megabit hub: