Free Digital Logic Circuits Program --> Logisim

Carl Bursh's call this Simulation digital circuits as Logisim. This Program allow us to design circuits on computer. this program is great for electronic student to easy built circuits. From simple circuits to complex like a PC board circuits. Powerfull program for educational purposes yet. Since very few program that is for educational purposes. the toolbar filled with icons to add operators (AND, OR, NOT etc), color-wiring, arithmetic, Base and Output/Input. This is very simple, compact and powerful program. no need to install on your machine. We can call it portable circuits builder. As long as your machine have a Java (java.sun.com). You can check this out / another review about Logisim.Run on Windows and MacOS X operation system.