| Subject | English | Icelandic |
| comp., MS | add-on | viðbót (A device that is traditionally added to the base computer system to increase functionality, such as audio, networking, graphics, or SCSI controller) |
| comp., MS | Mail Migration add-on | Mail Migration-viðbót (A tool that allows users to upload email messages, email folders, and contacts from an email account on their PC to the cloud to facilitate access from multiple devices) |