Preindustrial - In a preindustrial society, food production, which is carried out through the use of human and animal labor, is the main economic activity. Preindustrial societies can be subdivided according to their level of technology and their method of producing food. These subdivisions are hunter-gatherer, pastoral, horticultural, and agricultural.
Industrial - In an industrial society the emphasis shifts from the production of food to the production of manufactured goods. This shift is made possible by changes in production methods. In preindustrial societies, production is based on human and animal labor. Production is slow, and the amount that can be produced is limited. In industrial societies the bulk of production is carried out with machines. Thus, productions can be increased by adding more machines or by developing new technologies.
Postindustrial - The United States, like many Western countries, is no longer an industrial society. Rather, it is a postindustrial society, where the economic emphasis is on the provision of information and services rather than on manufacturing.