("BOO-lee-un") The terms AND, OR and NOT, sometimes called Logical Operators, used to define the relationships among the terms used when searching a database. AND narrows a search. Both search terms have to be found somewhere in the record OR broadens a search. Only one of the search terms needs to appear in the record, not both. NOT narrows a search. A record is retrieved only when the first term is present and the second is not.
Operators that combine Boolean expressions. There are 3 Boolean operators: And, Or, and Not. The result of the expression should result in a Boolean value (True or False).
The logical operators AND, OR, and NOT, used to specify the logical relationship between two quantities or concepts; used in online searching. Boolean operators are also called logical operators. boot To load an operating system into primary storage and prepare a computer for use.