What is publice sector and private sector organisation?

What is publice sector and private sector organisation?
The public sector is a part of the state that deals with the delivery of goods and services by and for the government, whether national, regional or local/municipal.Examples of public sector activity range from delivering social security, administering urban planning and organizing national defenses. In economics, the private sector is that part of the economy which is both run for private profit and is not controlled by the state. By contrast, enterprises that are part of the state are part of the public sector; private, non-profit organizations are regarded as part of the voluntary sector.