Logisim Simulator

In the following link you will find a graphical tool for designing and simulating combinational and synchronous circuits.

Some examples of implementation using Logisim (download the file and open it using Logisim):

1. The 3-bit carry function. This function appears on Chapter 1, 15, etc.
2. The AND(4) function. This function appears on Chapter 12, 13, etc.
3. The DECODER(3) function. This function appears on Chapter 13, etc.