Bengali Wadding Cards

Boolean operators, facilitate information retrieval

The class retrieval of program systems information and documentation given in the Salle University , we analyze the importance of the use of Boolean operators in searches made in different engines. This in order to limit searches. For example, you can use English or diacritics:

AND = + (plus sign) or & (ampersand)

OR = - (minus sign) or (Tilde)

Recall that serves to unite AND, OR

to choose and

NOT to exclude.

Boolean operators can be used in case-sensitive and is total use all 3 in one sentence.

For example:

Information Retrieval

AND

information systems program

OR Salle University Recovery information

Information Systems Program
Salle University