viðbótareiningu
Viðbótareiningu is a term used to describe a unit added to a main system to extend its functionality or capacity. It is composed of viðbót (addition) and eining (unit). The form is used in Icelandic to denote an appendage, module, or extension; as a genitive singular it appears as viðbótareiningu, and the plural typically viðbótareiningar. The concept is widely used in technical and industrial contexts.
Contexts: In computing and electronics, a viðbótareiningu may be an expansion card, external device, or optional
Design considerations include compatibility with interfaces and standards, power requirements, data exchange, physical form factor, reliability,
Examples: a computer expansion card as a viðbótareiningu; an HVAC controller extension module; a software plug-in