Tourism is a phenomenon that affects and is effected by a wide range of things. Given the increasing impact of technology on peoples' private and business life, it is important to explore ways in which it affect tourism. In order to attract potential tourists, a well-designed communication strategy is needed, and since we live in a digitized world, it is necessary for the tourism industry to rely on information and communication technology, especially the Internet as an instrument of international communication. Current applications of computer technology in tourism and hospitality can be grouped into three main areas, operational, guest services and management information. Diffusion of information technology systems in tourism and hospitality will increase the efficiency, quality and flexibility of tourism services. Sophisticated central reservation system offers a hotel different opportunities and benefits such as increasing reservations, maximizing sales, deploying and managing revenue, improving marketability, and improving search services. Along with the many positive effects of ICT in business, it is difficult to imagine a modern business without adopting ICT. ICT pervades every aspect of the twenty-first century business. In the hotel, the most important thing is a computer through which accounts are created, accompanying reservations, registration and departure of guests, recording of guest expenses, sharing information inside and outside the hotel and so on.