Glossary C
Deutsch: Kohle / Español: Carbón / Português: Carvão / Français: Charbon / Italiano: Carbone /
Coal refers to a combustible black or brownish-black sedimentary rock composed mostly of carbon and hydrocarbons.
Computing machine, now known as computer, used increasingly from the 1920s, refers to any machine that does the work of a human computer, i.e. any machine that calculates in accordance with effective methods.