- computing is everywhere
- first machine: abacus (3000 v. Chr.)
- first "computer": person who computed
- Leibniz: first real computer device
- Leibniz: Step Reckoner
- Charles Babbage: Difference Engine
- Charles Babbage: Analytical Engine as first "general purpose computer"
- Ada Lovelace
- Herman Hollerith: Punch cards => IBM
- Harvard Mark 2: Mechanical
- Grace Hooper
- Thermionic Effect
- Diode
- Vacuum Tube
- Colossus Mark 1
- Alan Turing: The Bombe
- ENIAC
- Transistor
- George Boole: Boolean Logic