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

Advanced searching on Yahoo

Yahoo uses

With all of the words = AND

With at least one of the words = OR

Without the words = NOT

By placing search terms in one or more of these categories, you can set up most Boolean statements you will need in your searching.

Note that it is not only search engines which provide these advanced search facilities. They may also be found within a site. The Houses of Parliament site is an example:

http://www.publications.parliament.uk/cgi-bin/semaphoreserver?DB=semukparl&FILE=search

Let's have a look at some Other points on Boolean searching ...