Posts Tagged ‘ Search

About Boolean: A Primer in Boolean Logic

Boolean Searching on the Internet

A Primer in Boolean Logic

The Internet is a vast computer database. As such, its contents must be searched according to the rules of computer database searching. Much database searching is based on the principles of Boolean logic. Boolean logic refers to the logical relationship among search terms, and is named for the British-born Irish mathematician George Boole.

On Internet search engines, the options for constructing logical relationships among search terms often modify the traditional practice of Boolean searching. This will be covered in the section below.

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Boolean Basics

Boolean Searching

Introduction to Boolean “operators”

When searching a database, first think of keywords that best describe your topic. Then combine these keywords using Boolean “operators” to broaden or narrow your search.

The Boolean operators are:

and

or

not

They determine how the computer searches for your keywords, and what information is returned to you.

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