Description: Abstract The Internet has moved all the boundaries or rather erased, and made the most important step in the process of globalization. Today, computer, Internet and mobile phone component, almost inseparable part of modern man in the workplace and in private. From propagating through the network to book airline tickets, hotel reservations, scheduling urgent to any adjustment of hairstyles - all is possible through the Internet, and now use your mobile phone. We tried to focus on the development of the Internet consider how these innovations gradually occupy their place in business systems and our lives. Key words: Internet, Arpanet, protocol, computer.