Travel through the history of computer networking and learn how computers and cell phones send data over the air in a secure manner from the moon and back. Learn how sms networks work. Learn how the internet works. Learn how encryption works. A great introduction to the foundation of the internet and mobile phone technology.

Back cover 

"All the world's knowledge will be accessible from the palm of your hand."

In an era where a smartphone can unlock your front door, serve as your payment device, and connect you to friends across the globe, it's easy to forget how far we've come. This book is your backstage pass to the most transformative journey in communications—the story of how analog radio signals evolved into universal, high-speed data networks that power our modern digital world.

Inside, you'll discover:

• The fascinating history of wireless communication, from early radio transmissions to the development of cellular networks and Wi-Fi.
• How visionaries overcame technical barriers, such as limited bandwidth and signal interference, to create the seamless connectivity we enjoy today.
• The evolution of networking standards and protocols, and the challenges of uniting competing technologies to create a global network.
• The impact of wireless technology on society, from the way we work and communicate to the way we access information and entertainment.
• The future of wireless connectivity, including emerging technologies like 5G and the Internet of Things, and the potential for even greater innovation.

From the early pulse-code modulations of the 1960s mainframes, to the invention of Ethernet and the dawn of the Internet, all the way through modern wireless and satellite networks—this is the captivating saga of global innovation that has shaped our world.

Whether you're a technical professional, business leader, student, or enthusiast, this guide will deepen your understanding of how voice, data, and multimedia converged in the palm of your hand—and what the next wave of connectivity might bring.