1. Sketch the symbol and truth table for an AND gate.

2. Sketch the symbol and truth table for an (inclusive) OR gate.

3. Sketch the symbol and truth table for an NOT gate.

4. Sketch the symbol and truth table for an NAND gate.

5. Sketch the symbol and truth table for an NOR gate.

6. Sketch the symbol and truth table for an XOR gate.

7. Show how a series of half-adders and OR gates can be used to perform the following binary addition:

0111+
1011

8. What is the name given to the 'law' which states that the number of transistors that can be fabricated onto a given piece of silicon doubles approximately every two years?

9. What is the function of the 'Control' input on a 'flip-flop' circuit?

10. What is the function of the 'Base' input on a transistor?