Introduction
Why Computers and logic gates
- What do computers do?
- Make Decisions(logic gates)
- Perform Calculations (adders)
- Store Data & Programs (flip flop circuit)
- Binary computers – all data sent as 1s and 0s on/off.
- All decisions result in a particular circuit being turned on or off
Logic Problems
Logic Gates – AND | OR | NOT
- Diagrams and truth tables
- combining 2 gates
- practical applications
Logic Gates – NOR NAND XOR
- Diagrams and truth tables
- combining 3+ gates
- practical applications
Logic statements & circuits
- Solving problems with logic circuits
- Solving problems using logic gates
Half & Full Adders
- What are they? Why do we need them? How do they work?
- Domino adder activity
- Build your own half adder activity
- Prep activity – build a full adder
Flip Flop Circuits
- What are they? Why do we need them?
- History of computers – hard wired programs and data
- vacuum tubes – original memory – unreliable – silicone transistors more reliable
Extension / Cross curricular challenge – Transistors
A practical lesson creating logic gates using simple circuits & transistors