| Subject | English | Welsh |
| comp., MS | device driver | gyrrwr dyfais (Software that enables hardware or peripherals (such as a printer, mouse, or keyboard) to work with your computer or mobile device) |
| gen. | driver's license | trwydded yrru (Yerkwantai) |
| comp., MS | early-launch boot driver | gyrrwr cychwyn lansio cynnar (An antimalware driver that loads early in the boot process, to evaluate the safety of the other drivers being loaded. Based on a comparison against historical data for those drivers, the antimalware driver returns information to the kernel, which makes initialization decisions for each driver) |
| comp., MS | layered driver | gyrrwr haenog (One of a collection of drivers that responds to the same IRPs. Layered driver describes the highest-level and lowest-level drivers in a chain of layered drivers that process the same IRPs, along with all intermediate drivers in the chain) |
| comp., MS | ODBC driver | gyrrwr ODBC (A program file used to connect to a particular database. Each database program, such as Access or dBASE, or database management system, such as SQL Server, requires a different driver) |
| comp., MS | printer driver | gyrrwr peiriant argraffu (The device that communicates between your software program and your printer) |