CS Degree Day 72

What I did today?

• Lecture 3: Sequential logic - latches, flip-flops
• Lecture 4: Finite state machines - Moore, Mealy
• Problem set: Design a traffic light FSM

I designed a traffic light FSM. Four states. The state machine moves between them on a clock tick. This is the simplest possible example and yet it crystallized something: all of the complex state management in software is, at the bottom, a finite state machine running on a clock. Every await, every event loop, every UI state, all of it eventually resolves to sequential logic.