| Subject | English | Welsh |
| comp., MS | Active Directory Service Interfaces | Rhyngwynebau'r Gwasanaeth Active Directory (A directory service model and a set of Component Object Model (COM) interfaces. ADSI enables Windows applications and Active Directory clients to access several network directory services, including Active Directory) |
| comp., MS | application programming interface | rhyngwyneb rhaglennu cymhwysiad (A set of routines that an application uses to request and carry out lower-level services performed by a computer's operating system. These routines usually carry out maintenance tasks such as managing files and displaying information) |
| comp., MS | common gateway interface | rhyngwyneb adwy gyffredin (A server-side interface for initiating software services. For example, a set of interfaces that describe how a Web server communicates with software on the same computer. Any software can be a CGI program if it handles input and output according to the CGI standard) |
| comp., MS | Component Platform Interface | Rhyngwyneb Llwyfan Cydran (A programming interface used to build and maintain unattended installation answer files and configuration sets by adding security fixes, changing drivers, and so forth) |
| comp., MS | Cryptography Application Programming Interface | Rhyngwyneb Rhaglennu Rhaglen Cryptograffeg (An (API) that is provided as part of Microsoft Windows. CryptoAPI provides a set of functions that allow applications to encrypt or digitally sign data in a flexible manner while providing protection for the user's sensitive private key data. Actual cryptographic operations are performed by independent modules known as (CSPs)) |
| comp., MS | graphical user interface | rhyngwyneb defnyddiwr graffigol (A display format, like that of Windows, that represents a program's functions with graphic images such as buttons and icons. GUIs enable a user to perform operations and make choices by pointing and clicking with a mouse) |
| comp., MS | hardware interface | rhyngwyneb caledwedd (A card, plug, or other device that connects pieces of hardware with the computer so that information can be moved from place to place. For example, standardized interfaces such as RS-232-C standard and SCSI enable communications between computers and printers or disks) |
| comp., MS | high-definition multimedia interface | rhyngwyneb amlgyfrwng diffiniad uchel (A digital interface specification for delivering digital content and connecting consumer electronic devices) |
| comp., MS | Internet Server Application Programming Interface | Rhyngwyneb Rhaglennu Rhaglenni Gweinydd Rhyngrwyd (An application programming interface (API) that resides on a server computer for initiating software services tuned for Windows operating systems. In Microsoft Provisioning System, ISAPI resides on the Web server) |
| comp., MS | Language Interface Pack | Pecyn Rhyngwyneb Iaith (Add-in software that provides partially localized user interfaces for particular computer programs in languages not supported by localized versions of those programs) |
| comp., MS | Messaging Application Programming Interface | Rhyngwyneb Rhaglennu Rhaglen Negeseua (A messaging architecture that enables multiple applications to interact with multiple messaging systems across a variety of hardware platforms. MAPI is built on the Component Object Model (COM) foundation) |
| comp., MS | Multilingual User Interface | Rhyngwyneb Defnyddwyr Amlieithog (A technology that allows for the installation and use of multiple user-interface languages) |
| comp., MS | Multimedia Content Description Interface | Rhyngwyneb Disgrifiad Cynnwys Amlgyfrwng (A standard of video compression and file format developed by the Moving Pictures Experts Group for description and search of multimedia content data) |
| comp., MS | Role-Based Interface | Rhyngwyneb seiliedig ar Rôl (A feature that customizes the contents of the user interface depending on the security permissions of the user. For example, if the user does not have permission to edit an item, the edit button will not be displayed) |
| comp., MS | single-document interface | rhyngwyneb un ddogfen (A specification according to which each open document occupies its own window in the UI, though only a single instance of the program application is running) |
| comp., MS | Telephone User Interface | Rhyngwyneb Defnyddiwr Ffôn (An interface that is used to navigate the menus of a Unified Messaging (UM) system using DTMF or touchtone inputs) |
| comp., MS | touchtone interface | rhyngwyneb tôn gyffwrdd (An interface that is used to navigate the menus of a Unified Messaging (UM) system using DTMF or touchtone inputs) |
| comp., MS | user interface | rhyngwyneb defnyddiwr (The portion of a program with which a user interacts) |
| comp., MS | visual interface | rhyngwyneb gweledol (A display format, like that of Windows, that represents a program's functions with graphic images such as buttons and icons. GUIs enable a user to perform operations and make choices by pointing and clicking with a mouse) |
| comp., MS | Voice User Interface | Rhyngwyneb Defnyddiwr Llais (An interface that is used to navigate the menus of a Unified Messaging (UM) system using speech inputs) |