Options Menu

• Simulate: When this is enabled, Logisim updates the displayed state of the circuit whenever anything is done to the circuit. When disabled, Logisim maintains the current state of the circuit until the option is reenabled.
• Advanced Tools: When not selected, Logisim only provides basic gates to you. Selected, this opens up a myriad of tools for more sophisticated circuit-building, including custom-designed components, state-sensitive components, and project management.

• Small Gates: When disabled, Logisim draws large AND, OR, and NOT gates. While easy to view, in complex circuits the size of these gates inhibits how much you can see at once. When enabled, Logisim uses smaller AND, OR, and NOT gates. There is nothing wrong with mixing large and small gates in the same circuit.

• Show Grid: Logisim forces components to be on a grid. When this option is enabled, the grid is displayed. When disabled, the grid is invisible (but still there).

• Ghosts Follow Cursor: If this is enabled, whenever you have a component-adding tool and you drag it around, a light-gray ghost of the component will follow the cursor. This aids you in remembering what is being added and in knowing where it will be placed. If you find it annoying, you can disable the option.