There are four types of industry. These are primary, secondary, tertiary and quaternary. Primary industry involves getting raw materials e.g. mining, farming and fishing.
Secondary industry involves manufacturing e.g. making cars and steel.
Tertiary industries provide a service e.g. teaching and nursing. Industrial Systems Factories have inputs, processes and outputs. Inputs can be the raw materials need to make something. Inputs can also be labour, buildings, capital and machinery. Processes are the things which go on within the factory.