**Boolean logic **A formal logic system derived from the BOOLEAN ALGEBRA by interpreting its two permissible values 0and 1 as the TRUTH VALUES True and False. It is used in electronics to define the behavior of all the kinds of LOGIC GATE from which computer processors are constructed, and in programming to define operators that work on truth-valued variables.

It’s used to solve the kind of problems you buy a database program to handle: like, “show me the list of men who dance, *and *who cook *or *like washing dishes, *and *who are *not *married.” (Boolean logic is big on **expressions **such as *and, or, *and *not.) *You use Boolean logic every time you search your database. Boolean logic comes in very handy on a *digital *computer (which is what you have) because each answer can be a *bit *that is either on or off, true or false. The computer uses Boolean logic in a great deal of its work.