This document describes the components and materials of a basic calculator. It lists the main internal components like the plastic case, screws, plastic keys, lithium battery, processor chip, display, solar cell, keyboard sensor, keyboard membrane, copper conductor, and tin contact. It also identifies the materials used, including thermosetting polymers, steel, copper, lithium, glass, natural rubber, and tin. The document provides a breakdown of a calculator into its physical parts and raw materials.