The Book of World Time Figures

"The World is Digital," This book is the world's top computer scientist Brian W. Kernighan to ordinary readers of the introductory book, through the teacher introduced me to read the book. Have some experience.

This "world is digital" is a popular science book about the people in the mathematical age should know about the computer and the Internet knowledge of the reader object is non-professional. This book is concise, interesting, and thought-provoking, and many of the views are of great value to both professionals and the general public. Whether you have a computer background or whatever you do, this book is readable as long as you agree that you live in the digital age.

The first part of this book describes the origin of the computer. Early computer use is very simple, usually used for scientific astronomical observation operations, but with the advent of programming language, the function of the computer is a string of code enrichment, so that the computer can handle more problems to be used for various purposes, and even today we have to rely on computers. In the rapid development of digital technology today, whether you accept the computer has become a necessary part of our lives. It's just like the air in our lives, and there are advantages and disadvantages.

Through the computer technology we can now online shopping, reading, or a doctor and so on these are convenient and our life benefits. Although these features are convenient but inevitably there are security issues, that is, network privacy security issues. The book also emphasizes that the most serious problem in today's network world is the security of network privacy, once I do not worry about this problem, but the book describes our daily Internet traces of cookies if they are decrypted by some bad molecules, they can access our account information password and personal privacy, That is to say, if we do not do our own network protection measures and their own security awareness of the Internet, we are naked in front of hackers. They can easily steal our account privacy and steal our important information. This reminds me on the Internet must pay attention to protect their privacy, a lot of learning network technology.

Now household appliances into every household, and the electrical more and more intelligent, can make electrical appliances to achieve so many functions the real reason is 0 and 1 such a digital code is machine language. Every step of the work in electrical appliances is controlled by a machine language consisting of simple 0 and 1, and our side is filled with numbers, and the digital propulsion of this human development improves our lives. Maybe anything in the future becomes intelligent and digital, our work will become simpler, and the intelligence of machines will liberate more labor, and all of this is based on our mastery of programming and writing debug runs.

Perhaps some people will feel very strange, to let the appliance realize a variety of functions is such a 010101 code implementation. In fact, our computer to achieve any function must write the corresponding program, and the computer can only recognize the machine language, so ultimately we want to achieve a function is to return to the machine language. "Numbers are no longer just about computing, it's about our survival," Professor Nick wrote at the very outset of the book. One of the core ideas that runs through the book is that bit (bit), as "DNA of information", is rapidly replacing atoms (atom) as a fundamental element of human society. In comparison, the industrial age is an atomic age, it brings the idea of machine production, and the economic pattern of repetitive production in any particular space-time, in a unified and standardized manner, the "mechanical reproduction" era. The information age, the computer age, shows the same economic scale, but the correlation between space-time and economy has weakened. People can make bits whenever and wherever they are. It can be seen that the information technology revolution frees up computers that are subject to keyboards and monitors, making them the objects we are able to talk to, travel with, touch and even wear. These developments are bound to change the way we live.

As times progress, computers, communications systems, and digital products supported by them are everywhere! A cell phone, laptop and desktop computer are now in the household. Rechargeable treasure, cars, trains, airplanes, and so on. has become a part of our daily life just like air. So we need to know more about computers to understand our increasingly digital world.

The Book of World Time Figures