logic--the use of AND, OR, and NOT to filter information--was conceived of
in the 1800s by mathematician George Boole. Boolean logic has been used
with computers almost from the day the first computer was invented, and
it's still in use in today's ultra powerful search engines and databases.
The Internet contains many interesting resources about the use of Boolean
logic. These resources include search guides, tutorials, tips, and
articles, both about its use and its inventor.
History of Boolean
Logic George Boole was a luminary in the fields of mathematics and
logic. Using his basic definitions of AND, OR, and NOT, you can wade
through piles of irrelevant data in minutes to find the one piece of
information that you need. To learn more about the man behind Boolean
logic, read the article at http://en.wikipedia.org/wiki/Boole.
Throughout the article you will find many related links that may help
broaden your understanding of this topic. For a longer
biography, as well as a portrait of Boole, visit this George Boole site (www-groups.dcs.st-andrews.ac.uk/~history).
Additionally, an essay that Boole wrote to describe his "application
of a new and peculiar form of Mathematics to the expression of the
operations of the mind in reasoning." is available in "The
Calculus of Logic" (www.maths.tcd.ie/pub/).
Today the term “Boolean” most often refers to specific words used to
narrow an online search. Web searches are just one of the many different
applications of Boolean logic. This
CNET glossary page provides a good definition for the term
“Boolean.” This Boolean
Operators Web page provides additional information and
definitions regarding Boolean operators. The article How
Boolean Logic Works by Marshall Brain details Boolean logic and
its microprocessor applications.
Boolean Search Guides
and Tutorials Many tutorials and guides are available for using
Boolean operators on the Web, and in databases. The following list of
links contains a wide variety of Web pages about Boolean search terms.