Nine Algorithms That Changed the Future: The Ingenious Ideas That Drive Today's Computers

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Product Description Nine revolutionary algorithms that power our computers and smartphonesEvery day, we use our computers to perform remarkable feats. A simple web search picks out a handful of relevant needles from the world's biggest haystack: the billions of pages on the World Wide Web. Uploading a photo to Facebook transmits millions of pieces of information over numerous error-prone network links, yet somehow a perfect copy of the photo arrives intact. Without even knowing it, we use public-key cryptography to transmit secret information like credit card numbers; and we use digital signatures to verify the identity of the websites we visit. How do our computers perform these tasks with such ease?This is the first book to answer that question in language anyone can understand, revealing the extraordinary ideas that power our PCs, laptops, and smartphones. Using vivid examples, John MacCormick explains the fundamental "tricks" behind nine types of computer algorithms, including artificial intelligence (where we learn about the "nearest neighbor trick" and "twenty questions trick"), Google's famous PageRank algorithm (which uses the "random surfer trick"), data compression, error correction, and much more.These revolutionary algorithms have changed our world: this book unlocks their secrets, and lays bare the incredible ideas that our computers use every day. Review " Nine Algorithms That Changed the Future offers a great way to find out what computer science is really about. In this very readable book, MacCormick (a computer scientist at Dickinson College) shows how a collection of sets of intangible instructions invented since the 1940s has led to monumental changes in all our lives. . . . MacCormick provides a taste of why we computer scientists get so excited about algorithms--for their utility, of course, but also for their beauty and elegance." ---Paul Curzon, Science "Most people know little and care less about how, say, electronic payments are kept secure or how movies are crammed onto DVDs. But as MacCormick shows, they're the result of often stunning ingenuity and creativity. . . . For insights into the thinking that can turn gigabytes into gigabucks, start here." ---Robert Matthews, BBC Focus "Algorithms are the controls that drive the engines of the Internet age. Here, MacCormick provides a popular account of several algorithms that affect people's everyday lives." ― Choice "John MacCormick's Nine Algorithms that Changed the Future joins a small set of books that have tried to communicate the nature of the field for a general audience. MacCormick provides something like a quick package tour, with stops at a few highlights--the 'great algorithms' of the title. . . . MacCormick has provided a nice introductory tour, suitable for those who are willing to commit to only a brief visit. Perhaps the taste that he provides will inspire some of those tourists to a more extensive exploration." ---Cary Gray, Books & Culture "[MacCormick] masterfully uses everyday analogies in a way that gets to the heart of the ideas (he calls them tricks) that make the algorithms work. While this is essential for readers without mathematical background, the other lesson that jumps out is that this is a great way to introduce these algorithms to mathematics and computer science students who will go on to more in-depth treatments. . . . This excellent survey is an outstanding achievement and would make an excellent library acquisition." ---Art Gittleman, MAA Reviews "[This is an] extraordinary achievement in the daunting task of presenting computer science for a popular audience." ---Ernest Davis, Popular (Computer) Science "These revolutionary algorithms have changed our world: this book unlocks their secrets, and lays bare the incredible ideas that our computers use every day." ― Zentralblatt MATH "An easy to read introduction to algorithms for a non-technical audience." ---Ben Everard, Linux Voice "The book will certainl