Mapper

Mapper may refer to:

Computers

 * MAPPER, a Fourth-generation programming language originally sold by Sperry Corporation (now Unisys)
 * Mapper(2), a biological database


 * -OR-


 * DataMapper, a software library written in the Ruby language
 * Device mapper, handler for Linux
 * Data mapper pattern, a software engineering architectural term
 * Global Mapper, a Global Information System software package developed by Blue Marble Geographics that runs on Microsoft Windows
 * Memory management controller, a chip that handles bank switching on certain NES cartridges, or the part of an emulator that emulates a Memory Management Controller
 * Object–relational mapping, a computer science programming technique
 * Port mapper, maps program to web address
 * Semantic mapper, maps between namespaces
 * Mapper, a variant (or perhaps a generalization?) of Reeb graphs and merge trees used for visualization in topological data analysis

Other

 * Level designer, a person who designs levels for video games
 * Moon Mineralogy Mapper, one of two instruments that NASA contributed to India's first mission to the Moon, Chandrayaan-1, launched October 22, 2008
 * Thematic Mapper, one of the Earth observing sensors introduced in the Landsat program
 * Wisconsin H-Alpha Mapper, a custom-built 0.6 metres (24 in) telescope operated by the University of Wisconsin–Madison, used to study the Helium-alpha ions of the warm ionized medium