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ANSWERS: 2
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Operations that work with Boolean logic. For example, if fish = f and chips = c, and no fish = !f and no chips = !c then I can have four different possible combinations: f c !f c f !c !f !c Now I might use an Boolean operator to give me only certain combinations: Give me fish AND chips: f c Give me fish OR chips OR both: fc, f!c, !fc Give me fish OR chips but not Both: f!c, !fc Your basic operators are AND, OR, NOT and XOR (known as eXclusive OR because it's the same as OR but without the BOTH part). By applying a NOT to an AND we get a NAND. In other words Give me NOT fish AND chips: !fc, f!c, !f!c. Because we get everything that isn't fish AND chips. From these operators, you can build some very sophisticated logic machines. Heck, the thing your typing on right now wouldn't work without the concept or Boolean operators!
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People who answer the phone and either speak the truth or lie
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