1. Digital Logic Gates

2. Definition An electronic device that makes logical decisions based on the different combinations of digital signals present on its inputs.1 Digital Logic True = 1 False = 0 1) Storr, Wayne (2010)., “Basic Electronics Tutorials”, (accessed 03 August 2011) Available from: http://www.electronics-tutorials.ws/logic/logic_1.html

3. AND Gate Digital Logic Gate that requires all inputs (A AND B) to be TRUE for the output to be TRUE Boolean Algebra A * B Transistor- 7408 Schematic Truth Table

4. OR Gate Digital Logic Gate that requires one input (A OR B) to be TRUE for the output to be TRUE Boolean Algebra A + B Transistor- 7432 Schematic Truth Table

5. XOR Gate Digital Logic Gate that requires only one input (A or B but not both) to be TRUE for the output to be TRUE Boolean Algebra A + B Transistor- 7486 Schematic Truth Table

6. Inverter (aka NOT) Gate Digital Logic Gate that inverts the input TRUE inverts to FALSEFALSE inverts to TRUE Boolean Algebra A Transistor- 7404 Schematic Truth Table

7. NAND Gate Digital Logic Gate that requires all inputs (A AND B) to be TRUE for the output to be FALSE Inverse of AND Gate Boolean Algebra A * B Transistor- 7400 Schematic Truth Table

8. NOR Gate Digital Logic Gate that requires one input (A OR B) to be TRUE for the output to be FALSE Inverse of OR Gate Boolean Algebra A + B Transistor- 7402 Schematic Truth Table

9. XNOR Gate Digital Logic Gate that requires only one input (A or B but not both) to be TRUE for the output to be FALSE Inverse of XOR Gate Boolean Algebra A + B Transistor- 74266 Schematic Truth Table