I'd add a few more: - Gesture-based UI: this forms the basis of the smartphone industry - sync communications like IRC, chat, voice, video chat (since email w

I'd add a few more: - Gesture-based UI: this forms the basis of the smartphone industry - sync communications like IRC, chat, voice, video chat (since email which is async is included) - Consensus algo like Paxos and Raft - Computer game: Spacewar