The Hidden Code

The classic guide to how computers work, updated with new chapters and interactive graphics "For me, Code was a revelation. It was the first book about programming that spoke to me. It started with a story, and it built up, layer by layer, analogy by analogy, until I understood not just the Code, but the System. Code is a book that is as much about Systems Thinking and abstractions as it is about code and programming. Code teaches us how many unseen layers there are between the computer systems that we as users look at every day and the magical silicon rocks that we infused with lightning and taught to think." - Scott Hanselman, Partner Program Director, Microsoft, and host of Hanselminutes Computers are everywhere, most obviously in our laptops and smartphones, but also our cars, televisions, microwave ovens, alarm clocks, robot vacuum cleaners, and other smart appliances. Have you ever wondered what goes on inside these devices to make our lives easier but occasionally more infuriating? For more than 20 years, readers have delighted in Charles Petzold's illuminating story of the secret inner life of computers, and now he has revised it for this new age of computing. Cleverly illustrated and easy to understand, this is the book that cracks the mystery. You'll discover what flashlights, black cats, seesaws, and the ride of Paul Revere can teach you about computing, and how human ingenuity and our compulsion to communicate have shaped every electronic device we use. This new expanded edition explores more deeply the bit-by-bit and gate-by-gate construction of the heart of every smart device, the central processing unit that combines the simplest of basic operations to perform the most complex of feats. Petzold's companion website, CodeHiddenLanguage.com, uses animated graphics of key circuits in the book to make computers even easier to comprehend. In addition to substantially revised and updated content, new chapters include: Chapter 18: Let's Build a Clock! Chapter 21: The Arithmetic Logic Unit Chapter 22: Registers and Busses Chapter 23: CPU Control Signals Chapter 24: Jumps, Loops, and Calls Chapter 28: The World Brain From the simple ticking of clocks to the worldwide hum of the internet, Code reveals the essence of the digital revolution.

By piecing together cryptic hints from the note and other clues left behind, Hannah Hawkins realizes her parents disappeared while trying to find the mysterious Code of Enoch.

This illustrated encyclopedia surveys the history and development of code-making and code-breaking in all areas of culture and society from hieroglyphs and runes to DNA, the Zodiac Killer, graffiti, and beyond.

Explains how different ciphers work, why they were invented, and how they were cracked, covering codes ranging from ancient Egyptian hieroglyphs and World War II's Enigma machines to the samurai code of honor.

A collection of four all-new strange stories from the sleepy town of Gravity Falls in one original graphic novel. Written by Alex Hirsch. Illustrated by Asaf Hanuka, Dana Terrace, Ian Worrel, Jacob Chabot, Jim Campbell, Joe Pitt, Kyle Smeallie, Meredith Gran, Mike Holmes, Priscilla Tang, Serina Hernandez, Stephanie Ramirez, and Valerie Halla.

This is a very personal story, but it's based on logic rather than emotion. It's a story that should help all of us destroy the bad emotions that lurk inside us. This is how we will survive. One day, while mowing the lawn, I had an epiphany. This flash of truth just came naturally like a flash of light, and from that first flash, I felt as though I had been given the formula of humanity. Starting that night, while I tried to sleep, something kept pushing at me and waking me up. The spirit would not let me sleep. It pushed at me over and over again. I finally gave in, got up, and the spirit helped me write out the formula for free will. I could never have done this alone. I opened up my mind and began to take note of everything. Things that made sense, things that didn't. I then filtered those things down-little by little-taking out opinion and leaving just what I knew to be true. The inner spirit was guiding me on my journey. It was attempting to help me clean my own soul after years of neglect. I was convinced that this happened because the spirit wanted me to be content with myself. It wanted me to seek truth. The truth would allow me to grow. The truth will allow us to grow. After flipping the formula of humanity upside down, I then flipped free will upside down. When that happened, the flood gates of truth from the creator and the destroyer opened up. History, law, the Bible, and all that makes up human behavior. It all became clear. We are human behavior. This is somewhat complicated, but once we realize these things to be true, life becomes more understandable, more balanced. These formulas can offer us a form of balance-a compass to use to keep ourselves structured and aligned with our inner spirit. Our inner spirit wants our lives clean and healthy. This book can help us do that.

"As gripping as a good thriller." --The Washington Post Unpack the science of secrecy and discover the methods behind cryptography--the encoding and decoding of information--in this clear and easy-to-understand young adult adaptation of the national bestseller that's perfect for this age of WikiLeaks, the Sony hack, and other events that reveal the extent to which our technology is never quite as secure as we want to believe. Coders and codebreakers alike will be fascinated by history's most mesmerizing stories of intrigue and cunning--from Julius Caesar and his Caeser cipher to the Allies' use of the Enigma machine to decode German messages during World War II. Accessible, compelling, and timely, The Code Book is sure to make readers see the past--and the future--in a whole new way. "Singh's power of explaining complex ideas is as dazzling as ever." --The Guardian

A 2022 PROSE Award finalist in Legal Studies and Criminology A 2022 American Bar Association Silver Gavel Award Finalist A Behavioral Scientist’s Notable Book of 2021 Freakonomics for the law—how applying behavioral science to the law can fundamentally change and explain misbehavior Why do most Americans wear seatbelts but continue to speed even though speeding fines are higher? Why could park rangers reduce theft by removing “no stealing” signs? Why was a man who stole 3 golf clubs sentenced to 25 years in prison? Some laws radically change behavior whereas others are consistently ignored and routinely broken. And yet we keep relying on harsh punishment against crime despite its continued failure. Professors Benjamin van Rooij and Adam Fine draw on decades of research to uncover the behavioral code: the root causes and hidden forces that drive human behavior and our responses to society’s laws. In doing so, they present the first accessible analysis of behavioral jurisprudence, which will fundamentally alter how we understand the connection between law and human behavior. The Behavioral Code offers a necessary and different approach to battling crime and injustice that is based in understanding the science of human misconduct—rather than relying on our instinctual drive to punish as a way to shape behavior. The book reveals the behavioral code’s hidden role through illustrative examples like: • The illusion of the US’s beloved tax refund • German walls that “pee back” at public urinators • The $1,000 monthly “good behavior” reward that reduced gun violence • Uber’s backdoor “Greyball” app that helped the company evade Seattle’s taxi regulators • A $2.3 billion legal settlement against Pfizer that revealed how whistleblower protections fail to reduce corporate malfeasance • A toxic organizational culture playing a core role in Volkswagen’s emissions cheating scandal • How Peter Thiel helped Hulk Hogan sue Gawker into oblivion Revelatory and counterintuitive, The Behavioral Code catalyzes the conversation about how the law can effectively improve human conduct and respond to some of our most pressing issues today, from police misconduct to corporate malfeasance.