The Book of the World is digital

With the development of science and technology, we have entered the digital world. Ten years ago, we still have PHS, Button mobile phone, ten years later, each of us has a touch screen mobile phone on each hand. The development of science and technology makes everything in the world very fast, and anything that exists is short and will be replaced in a moment. Digital systems are becoming smaller, faster, and cheaper. A huge amount of digital data is constantly being collected and updated every day. Finally, digital systems are pervasive in our lives and become an integral part of the stage behind the scenes. I was more and more curious about the digital system, wondering what the digital system was, how it worked, and then I found the answer in a book. The book "The World Is digital".

The book "The World Is Digital" was written by Brain W.0kernighan, the world's leading scientist. This book introduces the basic knowledge of computer and is popular with many students. It explains how computers and communication systems work, and Oren brings social, political and legal issues to the new technology. It is a concise and thorough explanation of the secrets behind digital systems and communication systems, so that all who read this book can better understand the world in which they live.

The book consists of three parts: hardware, software and communication. The first chapter describes what is in the computer. Detailed the logical structure, physical structure, Moore's law and other related knowledge presented in front of us, let me have a preliminary understanding of the hard computer, feel the power of the computer. In chapter Two, the information indicates that the computer can only recognize binary. You can turn the language into binary, and the computer shows the effect we want. The third chapter of the computer is an important part of the CPU, in-depth description of the CPU.

The second part of the software, life we often use the mobile phone computer, mobile phone computer is to install programs to meet our various needs. Then the program is how to come, the program is compiled by humans, to develop, to achieve the desired effect.

The third part of the communication, thousands of years ago, people can only be good at running the transmission of information, which not only transmits information slowly, but also unsafe. Now communication, we can call, chat QQ, a variety of communication tools in endless, convenient people's lives, accelerate the development of information, so that life becomes better.

The Book of the World is digital