Links
2.1.2 CPU
Microprocessor Tutorial
Computer Architecture
Youtube: From sand to chip – How a CPU is made
The Little Man Computer
2.1.2 Binary Logic
Logic Circuit Software
Royal Institution – All very logical
Youtube – Logic gates using toys
2.1.2 Memory
How much memory do you have and how much do you need?
2.1.4 Units
Teaching Binary using the Socratic Method
Wikipedia Bit
2.1.4 Number
Cisco Binary Game