This invention relates to an online shopping system and method for use offline, and apparatuses applied to the same. More particularly, this invention relates to the integration of an online shopping system into offline stores through the conversion of online shopping to offline shopping, using communication networks such as the Internet, to create a new shopping concept based on using the combined advantages of online and offline environments such as that of online price competitiveness and offline customer relationships, while effectively providing users with freedom of detailed product knowledge and product purchases at online prices.