6.2 Demonstrate knowledge of search logic, search engines and features of the Internet

Table of Contents

1. Introduction
   1. Boolean logic
   2. The Boolean operators
   3. Logic diagrams: the AND operator
   4. Logic Diagrams: the OR operator
   5. Logic Diagrams: the NOT operator
   6. Using multiple Boolean operators
   7. Constructing precise Boolean searches
   8. Search engine assumptions
   9. Advanced search facility
   10. Advanced searching on Yahoo
   11. Other points on Boolean searching ...
2. Truncation and wildcards
3. Grammar of the Internet
4. Search engine operation
5. Ownership of the web
6. Dark internet and the invisible web

Logic Diagrams: the OR operator

OR

girls OR boys

The shaded area represents the records which have information on only girls' clothing, only boys' clothing or on clothing for both boys and girls.

Let's have a look at the Logic diagram for the NOT operator ...