Service sector is that portion of the economy that produces intangible goods. The service sector provides a service, not an actual product that could be held in your hand. Activities in the service sector include retail, banks, hotels, real estate, education, health, social work, computer services, recreation, media, communications, electricity, gas and water supply.
An industry made up of companies that primarily earn revenue through providing intangible products and services. Service industry companies are involved in retail, transport, distribution, food services, as well as other service-dominated businesses. It is also called as tertiary sector of industry.