| Subject | English | Welsh |
| comp., MS | Uniform Resource Locator | Canfodydd Adnodd Unffurf (An address that uniquely identifies a location on the Internet. A URL is usually preceded by http://, as in http://www.microsoft.com. A URL can contain more detail, such as the name of a page of hypertext, often with the file name extension .html or .htm) |
| comp., MS | Uniform Resource Name | Enw Adnodd Unffurf (A scheme for uniquely identifying resources that may be available on the Internet by name, without regard to where they are located) |