How to use CD-ROMs and other databases

Using OR

You can combine multiple terms into one search to get more records or "hits". You do this by using the Boolean operator OR. Most databases offer Boolean searching.

For instance, if you type in itch or scratch the search engine in the database will find all the records that have either of these words or both words in them. So you should get quite a lot of hits.

Boolean is library terminology (derived from mathematics). All you need to know is that Boolean searching allows you greater control over the way that you search.