What is a MultiMedia Logic Simulator??
Lets start with, what is a logic simulator? A logic simulator is a high level simulation of a "digital" circuit, the kind used in a computer. At this level of simulation we ignore the details of the "real world" such as power for circuits, how fast circuits are, ground signals, cost and etc. These details are ignored so that you can deal directly with the logical aspect of the problem at hand.
In the "real world", when you’re ready to build your circuit you can worry about these details. Here is a simple example of real world versus the logic simulated world. The great thing about the MultiMedia Logic Simulator is you can use your logic circuit without building real hardware, in fact you can connect it to (interface it with) real hardware (such as your keyboard, speaker, sound card, robot or another Logic
Simulator).
LAB SESSION!!
In this session or topic it will show the student be able to understand and apply basic logic gates, law and rules of Boolean algebra and DeMorgan's theorems to Boolean expressions. Besides that, able to design a combinational logic circiut for a given Boolean output expressions. Furthermore, able to simplify Boolean expressions and convert into a logic circiut.
Before proceed on using this "Digital Simulator" you should prepare some software that is you can download freeware on this link have been given below:
Multimedia Logic 1.4: http://multimedia-logic.software.informer.com/1.4/
After you have download this software, then installed on your pc.
How to using this "Digital Multimedia Simulator"??
I will show to you step by step....
Multimedia logic is drag and drop logic design software. You can draw your logic design on the white canvas and then we can simulate the circuit.
To draw the circuit, you will need the palette to choose which component needed to build the circuit. The mouse pointer indicates as selector. Use this to select or move icon. To delete an icon, use selector and select the icon. Once an icon is selected (there is a dotted box drawn around the icon), press "Delete" button on your keyboard.
STEP 1:
Find logic AND in the palette, click the AND gate and place it(click) on the canvas.
STEP 2:
Find the switch and click the switch, place on the canvas near the input of the gates.
The switch would look like the figure below.
The purpose of using the switch is to test the truth table.
If the switch is flipped up, it means 1 and 0 if it is flipped down.
STEP 3:
Find the LED icon and place on the output side of the gate. Do not confuse with 7 LED Segment!
STEP 4:
To connect each component, use wire icon to connect each dot to the respective gate.
Click at one end and drag the line to the other end.
STEP 5:
Label the input and output accordingly.
Find icon capital A(that refer to TEXT label) and click next to the input.
To edit the text, click the mouse pointer on the palette(it will indicate as selector) and double click the label Text to open Text properties.
Type the input label on Text box. Click OK.
STEP 6:
Simulate the logic by clicking the simulate menu, choose Run. or you can just click the play button to run the simulation.
Test the AND truth table by clicking the switch to see whether LED will light on.
LED will lights on if the condition met. In this logic, only when all switches is set to 1 then the LED will light RED.
To stop the simulation, prees STOP button.
This circuit can be save into .lgi file or printed by using the file menu.
Published by: Nur Syazwani binti Md Nor.... ^_^
