What are Boolean operators?
Boolean searching involves the use of three words, known as Boolean Logic Operators – “and”, “or” and “not”. These can be used to refine your search and ensure more relevant results. Once you understand the concept you will find that it is an extremely useful way of searching. The concept of using Boolean operators works equally well in searching a library catalogue or searching the internet. Some search engines have a default parameter “or” set, whilst others use “and” as a default. You will need to experiment with your favourite search engine to see what it uses.