up eight switches like so: Each switch in this circuit is labeled with a letter—the same letters as in the Boolean expression. ( means NOT W and is an alternative way to write 1 – W). Indeed, if you go through the wiring diagram from left to right starting at the top and moving from top to bottom, you’ll encounter the letters in the same order that they appear in the expression. Each x sign in the expression corresponds to a point in the circuit where two switches (or groups of switches) are connected in series. Each + sign in the expression corresponds to a place in the circuit where two
...more
