Theory and Tools: Why You Need Both

A simulator will run any Verilog you give it, but it cannot decide whether the circuit you described is the right circuit. That judgment belongs to the designer. Enough theory — truth tables, gate behavior, how combinational logic composes — is what lets you reason clearly about how a design should behave before you run anything.

The tools then do the part people are bad at: exhaustive checking. A testbench drives inputs and compares outputs against expected values far faster and more reliably than reading code by eye.

The two halves are complementary. Theory sets the intent; tools verify the match. This course interleaves both, so each lesson gives you a small piece of theory and an immediate way to test whether your circuit honors it.