Final answer:
An item is an addressable unit of data that may be a web page. It consists of fields organized into field sections.
Step-by-step explanation:
An item in the context of computers and technology refers to an addressable unit of data that may be a web page. It consists of fields organized into field sections. Unlike a library, where information is cataloged and organized, field information is not cataloged, organized, indexed, or shelved for convenience. Obtaining field information requires diligence, energy, and careful planning.