Named after George Boole, a 19th century mathematician. Internet Explorer and Netscape Navigator are the two most common browsers. A combination of letters and numbers placed on the spine of a book to locate it in the library. Catalog A tool used to learn what a library owns and where it is located. A standard format is used to describe books, journals, audiovisual holdings, etc.
Most catalogs are now online or computerized.
See OPAC . O nly M emory. Data on a CD-ROM can only be read, not changed or altered. Citation Information which fully identifies a publication. Classification system Used by libraries to arrange materials by subject.