In the modern world-class era, product quality , service or its re-arrangement is happening almost every moment. In this case, it is impossible to have a successful business and make a profit without upgrading the product information. Thus it is seen that in modern times information is being used as the first and foremost force by various banks , travel agencies , financial service providers , insurance companies to increase the value of their products. Customer service is an important part of modern business. The better the quality of customer service of the organization, the more profit the company will be able to make by surviving successfully in the market. To ensure the quality of customer service, large multinational companies have set up their call centers in different countries through the Internet, which can assist any of its customers with any information around the clock. Existing business activities can be enhanced by quickly gathering information through the information system, processing it and sending it to the manager level for decision making. Information systems provide huge benefits in business challenges. In order to know about information system in business, first you need to know about information system.