| English | Icelandic |
| primary calendar | aðaldagatal (The calendar selected in the regional settings in Windows Control Panel, or the system calendar) |
| primary e-mail address | aðalnetfang (The e-mail address that appears in the E-Mail Options section of the user's mailbox in the Web management interface for Outlook Live) |
| primary key | aðallykil (One or more fields that uniquely identify each record in a table. In the same way that a license plate number identifies a car, the primary key uniquely identifies a record) |
| primary key | aðallykill (A candidate key that is selected to be the principle identifier for uniquely identifying records in a database table) |
| primary mouse button | aðalmúsarhnappur (The button on your pointing device that you use most often for clicking and double-clicking) |
| primary table | aðaltafla (" The "one" side of two related tables in a one-to-many relationship. A primary table should have a primary key and each record should be unique.") |
| primary window | aðalgluggi (The window in which the main interaction with an object takes place) |
