The Random House Encyclopedia is an English language one-volume general encyclopaedia published by Random House. The first edition was published in 1977, followed by a second edition in 1983 and a third edition in 1990. The encyclopaedia is divided into two sections: Colorpedia, which is made of lengthy, illustrated articles, and Alphapedia, which features short, alphabetically arranged ones. The third edition comprised over 25,000 articles, including 13,500 illustrations and maps, with over 45,000 cross-references.
The 25,000 articles of the Alphapedia of the third edition were the basis for an electronic version. It was made for the MS-DOS 3.3 operating system and was distributed on sixteen -inch floppy disks and also on eight -inch floppy disks. The Random House Encyclopedia also served as the basis for different editions in over 20 countries, including the ten-volume Joy of Knowledge encyclopedia published in Great Britain.