Sistema, servicio o infraestructura útil para procesar información, o el lugar donde residen físicamente.

cualquier sistema de tratamiento de la información, servicios o infraestructura, o los lugares físicos que los albergan [UNE-ISO/IEC 27000:2014]

any information processing system, service or infrastructure, or the physical locations housing them [ISO/IEC 27000:2014]

A set of electrical equipment that operates as a single Bulk Electric System Element (e.g., a line, a generator, a shunt compensator, transformer, etc.) [NERC:2014]

An installation, plant, factory, laboratory, office, university or other educational Institution, or commercial undertaking, including any associated warehouses, storage areas, utilities and components which, when related by function and location, form an operating entity. [CCN-STIC-401:2007]