Week 2, Lecture 1 - Internet

Technical lecture.

Internet and phone calls

• Packet switching in early days –> copper wire connects all the way to the receiver to transmit the signal. Electromechanical.
  • Idea is to connect your phone wire to a packet center, then the packet center employees connect you to the next packet center and so on. Eventually, you have a wired connection going across the country.

The internet today

🍎 Internet: A network of networks.