A mosaic may refer to any of the following:
1. Officially known as NCSA Mosaic, Mosaic was the first widely used graphical World Wide Web browser. It was released on April 22, 1993, by the NCSA with the help of Marc Andreessen and Eric Bina. The development and support of Mosaic was officially discontinued on January 7, 1997. The picture shows Mosaic 1.0. Image credit goes to NCSA/University of Illinois.
2. A mosaic describes smaller images, stones, glass, or another material that make up a bigger image. The picture shows an example of a mosaic picture made up of smaller images using AndreaMosaic.