Simulation Screen 1: Quiz - To select appropriate gates to build a demultiplexer circuit.

          1. Click on "Start Quiz".
          2. Click on the appropriate gate.
          3. Click on "Check answer".
          4. If answer is correct, click "Go to next question".
          5. If answer is incorrect, "Wrong gate selected" pops up, click ok to try again and proceed.
          6. Repeat steps 2 to 5 and complete the quiz.
          7. In first attempt if all 3 questions are answered correctly, you get an overall score of 5 points. For any incorrect answers the points are deducted.
          9. For overall score lesser than 2 , you get a prompt "Please try the theory again". Click ok. Click on Theory tab and revise the concepts and repeat steps 1 to 8.
          10. In case of score greater than equal to 2, proceed to click on "Next stage". 
          
          

          Simulation Screen 2: Water tank - To identify the role of a demultiplexer circuit.

          1. For the given question, click on select inputs S2, S1 and S0 appropriately.
          2. Click on submit.
          3. For incorrect answer, click ok to try again.
          4. If answer is correct, Bingo! Click ok. Repeat steps 1 to 4 for next question.
          5. Select appropriate answer from the drop down box for the next 2 questions.
          6. For incorrect answer, click ok to try again.
          7. If answer is correct, Bingo! Click ok. Repeat steps 5 to 7 for next question.
          8. Click on Next.
          

          Simulation Screen 3: To formulate the Function table and Boolean Expression for 1:2 demultiplexer

          1. Select appropriate options from the drop down menu and formulate the function table.
          2. Click submit.
          3. If incorrect try again.
          4. If correct, select the correct expression defining the demultiplexer. 
          5. Try again if answer is incorrect.
          6. Proceed to the next step. Click Next.
          

          Simulation Screen 4: Simulator Scene - To design, construct and verify the operation of a 1:2 demultiplexer using basic logic gates. 

          Assume the enable input is activated (i.e. it is already set to zero)
          General instructions:
          1. Apply the function table/Boolean expression in Screen 3 to design a 1:2 demux.
          2. Click on the required object (AND, OR, NOT gate, digital switch, LED, connection wires) and click on canvas to place the component on canvas one by one.
          3. Every component is treated as an object with one/two inputs and one output.
          4. Digital switch output is connected as input. Click on ‘output 1 to input 1’ wire to connect the output to the first input of next gate, whereas ‘output 1 to input 2’ wire to connect the output to second input of gate.
          5. Y connector has one input and two outputs. When same input is to be connected at two places, use a y connector accordingly.
          6. Do connections as per the design.
          7. Use undo link/undo gate or redo link/gate to make corrections if any.
          8. Start simulator.
          9. Set select input S0 and data inputs Do & D1 and verify the corresponding outputs.
          10. Compare the output of the design against the corresponding output in the function table of 1:2 demux given on right hand side and validate your design.