His DigiRule is a ruler with a logic gate simulator. What he built is ... logic operations using buttons and LEDs. Of course the truth tables are printed on the back silk-screen, but playing ...

A truth table basically displays outputs for all possible combinations of input values to a logic gate or circuit. It either shows True and False values or 0 and 1 values. Now, if you want to ...

This can also be represented as 1 or 0 or True and False. Logic gates take an input of True or False and give an output of True or False. Each operator has a standard symbol that can be used when ...