Complete preliminary b1_students_book_without_answers

The document discusses the history and development of the internet over the past 50 years, from its origins as a US military program called ARPANET to the commercialization of the world wide web in the 1990s. It led to an explosion of new technologies and services that have transformed how people work, play, and communicate globally. The internet has become virtually ubiquitous and an essential part of modern life.