FRU

Fru can refer to several different concepts in technology, language, and biology. The most common meanings are described here in a neutral, concise way.

In technology, FRU stands for field-replaceable unit. This term designates a modular component that can be serviced or replaced on-site to restore equipment without returning it to the manufacturer. FRUs are common in computing hardware, networking gear, telecom systems, and aerospace equipment. Examples include power supplies, cooling fans, disk drives, and circuit boards. To support asset management and maintenance, FRU information such as part numbers, serial numbers, and manufacturing dates is often stored in dedicated memory on the component or in a system management controller.

In language and culture, fru is an honorific used in several Scandinavian languages to denote a married woman, equivalent to Mrs. or Dame in other languages. The term appears in formal or traditional address and can vary by country and context. It is typically paired with the surname of the woman being addressed.

In biology, fru is the shorthand for the fruitless gene in the fruit fly, Drosophila melanogaster. The fruitless gene encodes transcription factors that influence the development of neural circuits related to male courtship behavior and sexual differentiation. Research on fru has contributed to understanding how genetics shapes behavior and neural development.

Other uses are context-specific, often as acronyms or proper nouns in specialized fields. The intended meaning of fru is generally clear from surrounding context.