Boolean ANDs limit your results. A boolean OR means ANY of your search terms will be included in the search results. Boolean ORs expand your results. Copyright implies royalties or payment of money to use the material. It provides a financial incentive to creative people to write books or design software.
Databases are organized collections of information.
By design, the information in databases can be searched and retrieved quickly. Digital Libraries are electronic information depositories available online through the Internet. They are not limited just to books but also include many different formats of information. Email is short for electronic mail and is the most used of all Internet applications. Email is sending messages directly from one Internet address to another.