AND, OR, NOT Presented by Brenda Levert LM 565:91 Jan. 30, 2010.

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Presentation transcript:

AND, OR, NOT Presented by Brenda Levert LM 565:91 Jan. 30, 2010

Relationship between search terms Named after George Boole You can use Boolean Logic to refine your search

Boolean Logic 1.Boys AND Blue shirts___?__ 2.Boys OR Blue shirts ___?__ 1 6

Class Activity 1. Boys and Green shirts ___?___ 2. Boys or Green shirts ___?___

The Boolean Machine

Quotation marks require the search tool to treat your keywords as a phrase. Example: “Benjamin Franklin”

AND: Used to combine two keywords. Both must be present in the results Example ANDTelevisionViolence

Other Boolean Operators OR: Requires either term to be present in the search results Example: Colleges OR Universities CollegesUniversities OR

Other Boolean Operators NOT: Excludes terms Example: college NOT university collegeuniversity

Behavior FelinesCats (cats OR felines) AND behavior

Truncation (*) symbol Comput* compute computer computing computation

Review AND OR NOT

Reference ADAM. (n.d.). Boolean Searching. Retrieved January 24, 2010 from Delaware Tech Library. (2004). Boolean Searching and Truncation. Retrieved January 26, 2010 from Online Library Learning. Center. (n.d.). Boolean Search. Retrieved January 25, 2010 from Paul Meek Library. (n.d.). Boolean Searching on the Internet. Retrieved January 26 from Searching on the Internet Schrock, Rockwell. (n.d). The Boolean Machine. Retrieved January 27, 2010 from All Images Microsoft Clip Art

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