Early internet

What we needed:
- Existence of digital computers
- Existence of telecommunication networks
- Existence of information theory
- Ideas around flow control, logic, algorithms
Time sharing
- Technique for using the speed of the computer to present the appearance of multiple simultaneous users
- Terminal - keyboard/ whatever is transmitting instructors displaying results
needs to be a way to connect the terminal to the machine
Modem allows us to do that. Modulates digital pulses into sounds, demodulates sound into digital data
Rand corporation, like a think tank
Barans system is not hierarchical, switches can reroute as necessary
Barans packet switching
Long distance rates interfere
Davis finds out about Baran
Connect the minis, IMPs(interface message processors) and packet switching
People didn't want people using their computers, but IMPs makes it seem ok
These IMPs are like rounders nowadays
Englebart, creates mouse, windows, hypertext, etc