In recent years, the word telecommunications has been used so often, and applied in so many situations, that it has become part of our daily lexicon, yet its definition remains elusive. So, let's start with a definition. The word telecommunications has its roots in Greek: tele means "over a distance," and communicara means "the ability to share." Hence, telecommunications literally means "the sharing of information over a distance." Telecommunications is more than a set of technologies, it's more than an enormous global industry (estimated to be US$2.5 trillion), it's more than twenty-first-century business and law that is being re-created to accommodate a virtual world, and it's more than a creator and destroyer of the state of the economy. Telecommunications is a way of life. Telecommunications affects how and where you do everything live, work, play, socialize, entertain, serve, study, teach, rest, heal, and protect. Telecommunications has served a critical role in shaping society and culture, as well as in shaping business and economics.
It is important to examine telecommunications from the broadest perspective possible to truly appreciate the depth and complexity of this field and thereby understand the opportunities it affords. The best way to learn to "think telecom" is to quickly examine how it is changing both business and lifestyle.
Throughout the 1980s and 1990s, much of the IT&T (information technologies and telecommunications) industry's focus was on how to reengineer the likes of financial institutions, manufacturing, retail, service, and government. These technology deployments were largely pursued and justified on the grounds of reducing costs and enhancing competitiveness by speeding communications.
Today, we are shifting our focus to another set of objectives: Our technology deployments are targeted at supporting not just the needs of a business enterprise, but also those of the consumers. The revolution in integrated media is transforming all aspects of human activity related to communication and information. We are moving to computer-based environments that support the creation, sharing, and distribution of multimodal information. Whereas traditional telecommunications networks have allowed us to cross barriers associated with time and distance, the new multimedia realm is allowing us to include vital physical cues in the information stream, introducing a physical reality into the world of electronic communications, goods, and services. Not surprisingly, some of the industries that are being most radically revolutionized are those that deal with the human senses, including entertainment, health care, education, advertising, and, sadly, warfare. In each of these key sectors, there are telecommunications solutions that address the business need, reduce costs, or enhance operations by speeding business processes and aiding communications. These industries are also examining how to virtualize their products and/or services that is, how to apply telecommunications to support electronic services targeted at the consumers of that industry's products. Not surprisingly, changing the way you attend a class, see a doctor, watch a movie, get a date, shop for software, take a cruise, and stay in touch creates significant changes in how you use your time and money. Simply put, technology changes your way and pace of life.
This chapter presents the big picture of the telecommunications revolution, and the rest of the book gives greater detail about the specific technologies and applications that will comprise the telecommunications future.