The term retail (retail marketing in English) is used in trade to indicate the version, complete package, a particular product for sale to the public, and not companies, which typically buy goods in larger quantities, with different distribution and packaging (including wholesale).
Retail consists of the sale of physical goods or merchandise from a fixed location, such as a department store, boutique or kiosk, or by mall, in small or individual lots for direct consumption by the purchaser.
Restaurant is an eatery, for a fee serves food to guests. Typically, a restaurant, a theme for the menu, it can be fish or vegetarian or a foreign cuisine such as French, Italian, Chinese or Thai. The word restaurant is derived from French see Restore (strength up) and was first used in 16th century. The oldest existing restaurant, the Sobrino Botin in Madrid, Spain, which opened in 1725.