| Subject | English | Welsh |
| comp., MS | application map | map rhaglen (A mapping between file name extensions and HTTP request handlers that enables Web hosting applications to determine which handler responds to requests for specific types of files) |
| comp., MS | Bing Maps | Mapiau Bing (The Bing service that allows search and view of maps and satellite images) |
| comp., MS | character map | map nodau (In text-based computer graphics, a block of memory addresses that correspond to character spaces on a display screen. The memory allocated to each character space is used to hold the description of the character to be displayed in that space) |
| comp., MS | Character Map | Map Nodau (A feature in Windows that makes it possible to use characters that are not displayed on the keyboard) |
| comp., MS | Document Map | Map Dogfen (A vertical pane along the left edge of the document window that displays an outline of the document's headings, and enables the user to navigate to or manipulate different parts of the document) |
| comp., MS | external URL mapping | mapio URL allanol (A URL mapping for objects that are not part of the WSS system) |
| comp., MS | memory map | map cof (A representation of the layout of objects in an area of memory) |
| comp., MS | property mapping | mapio priodwedd (A mapping between a variable and a property of a package element) |