# Mapper

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> Markdown URL: https://mediated.wiki/source/Mapper.md
> Source: https://en.wikipedia.org/wiki/Mapper
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> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

Look up ***[mapper](https://en.wiktionary.org/wiki/mapper)*** in Wiktionary, the free dictionary.

**Mapper** may refer to:

## Computers

- [MAPPER](/source/MAPPER), a Fourth-generation programming language originally sold by Sperry Corporation (now Unisys)

- [Mapper(2)](/source/Mapper(2)), a biological database

- - -OR-

- [DataMapper](/source/DataMapper), a software library written in the Ruby language

- [Device mapper](/source/Device_mapper), handler for Linux

- [Data mapper pattern](/source/Data_mapper_pattern), a software engineering architectural term

- [Global Mapper](/source/Global_Mapper), a Global Information System software package developed by Blue Marble Geographics that runs on Microsoft Windows

- [Memory management controller](/source/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](/source/Object%E2%80%93relational_mapping), a computer science programming technique

- [Port mapper](/source/Port_mapper), maps program to web address

- [Semantic mapper](/source/Semantic_mapper), maps between namespaces

- [Mapper](/source/Mapper_(topological_data_analysis)), a variant (or perhaps a generalization?) of [Reeb graphs](/source/Reeb_graph) and [merge trees](/source/Merge_tree) used for visualization in [topological data analysis](/source/Topological_data_analysis)

## Other

- Level designer, a person who [designs levels](/source/Level_design) for video games

- [Moon Mineralogy Mapper](/source/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](/source/Thematic_Mapper), one of the Earth observing sensors introduced in the Landsat program

- [Wisconsin H-Alpha Mapper](/source/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

Topics referred to by the same term

This [disambiguation](https://en.wikipedia.org/wiki/Help:Disambiguation) page lists  articles associated with the title **Mapper**.
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Adapted from the Wikipedia article [Mapper](https://en.wikipedia.org/wiki/Mapper) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Mapper?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.