| Subject | English | Welsh |
| comp., MS | access code | cod mynediad (A string of characters entered by a user to verify his or her identity to a network or to a local computer, device, or client, or to sign in to an account, app, and so on) |
| comp., MS | code access security | diogelwch mynediad cod (A mechanism provided by the common language runtime whereby managed code is granted permissions by security policy and these permissions are enforced, helping to limit the operations that the code will be allowed to perform) |
| comp., MS | code access security CAS policy A set of rules that defines security permissions for a collection of assemblies by associating attributes of those assemblies, such as location and signature, with a set of code access security permissions | polisi diogelwch mynediad cod (CAS) |
| comp., MS | international access code | cod mynediad rhyngwladol (The prefix that is used to direct a call internationally. The International Access Code is 011 in the United States and 00 in much of the rest of the world) |
| comp., MS | outside line access code | cod mynediad llinell allanol (The prefix that is used to access an outside line. In the United States, this prefix is typically 9) |