The average download time was 1.6 minutes. A library collects, describes and distributes information. An on-line library collects, describes and distributes information in a networked environment. A digital library utilizes enhanced computing tools to facilitate the collection, description and distribution of information. Currently the WWW really benefits bitmapped and text based information formats.
Maps are a form of spatial information, perhaps our most obvious form.
However, maps are compiled from a variety of information such as census numbers, road types, mathematical elevation numbers surveys, navigational rudders and pilot books, even telephone books. All these pieces of information have been rendered graphically through cartography. Cartography has been a major interpreter of spatial information for centuries. In order to make maps of digital geo-spatial data, computer hardware and computer software are necessary. Digital geo-spatial information is digital data which are referenced to the earth's surface through a coordinate system.