Download or read book The Secret Life of Codes written by Kjartan Poskitt and published by . This book was released on 2009-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using a host of hilarious characters, Kjartan Poskitt presents all the tricks, tips and shortcuts to maths they don't teach at school. Readers will learn how to encode and decode their own messages in as many ways as possible. Can you see this very last paragraph is coded? (Read all the fourth words). The book demonstrates other codes you've probably never really been aware of. Stop waiting therefore and go for it.
Download or read book The Secret Life of Bar Codes written by John Berry and published by . This book was released on 2013-04-29 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book celebrates the 40th anniversary of the bar code and is written for those who over the years have asked the author what these bar codes are all about. It deals with why they were invented, who created them, how they are managed and used, whether they have been 'a good thing', how much longer they will last and what may replace them. It tells you how you can 'read between the lines' and 'what's in a number'. But it is not a detailed technical or historical account. It is an entertaining account full of stories and personalities designed to show that the term 'interesting bar codes' is not an oxymoron.
Download or read book Super Life Secret Codes written by Ted Sun and published by . This book was released on 2020-03-29 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Secret Life of Programs written by Jonathan E. Steinhart and published by No Starch Press. This book was released on 2019-08-06 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: A primer on the underlying technologies that allow computer programs to work. Covers topics like computer hardware, combinatorial logic, sequential logic, computer architecture, computer anatomy, and Input/Output. Many coders are unfamiliar with the underlying technologies that make their programs run. But why should you care when your code appears to work? Because you want it to run well and not be riddled with hard-to-find bugs. You don't want to be in the news because your code had a security problem. Lots of technical detail is available online but it's not organized or collected into a convenient place. In The Secret Life of Programs, veteran engineer Jonathan E. Steinhart explores--in depth--the foundational concepts that underlie the machine. Subjects like computer hardware, how software behaves on hardware, as well as how people have solved problems using technology over time. You'll learn: How the real world is converted into a form that computers understand, like bits, logic, numbers, text, and colors The fundamental building blocks that make up a computer including logic gates, adders, decoders, registers, and memory Why designing programs to match computer hardware, especially memory, improves performance How programs are converted into machine language that computers understand How software building blocks are combined to create programs like web browsers Clever tricks for making programs more efficient, like loop invariance, strength reduction, and recursive subdivision The fundamentals of computer security and machine intelligence Project design, documentation, scheduling, portability, maintenance, and other practical programming realities. Learn what really happens when your code runs on the machine and you'll learn to craft better, more efficient code.
Download or read book The Secret Life of Bletchley Park written by Sinclair McKay and published by Aurum. This book was released on 2011-08-26 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bletchley Park was where one of the war’s most famous – and crucial – achievements was made: the cracking of Germany’s “Enigma” code in which its most important military communications were couched. This country house in the Buckinghamshire countryside was home to Britain’s most brilliant mathematical brains, like Alan Turing, and the scene of immense advances in technology – indeed, the birth of modern computing. The military codes deciphered there were instrumental in turning both the Battle of the Atlantic and the war in North Africa. But, though plenty has been written about the boffins, and the codebreaking, fictional and non-fiction – from Robert Harris and Ian McEwan to Andrew Hodges’ biography of Turing – what of the thousands of men and women who lived and worked there during the war? What was life like for them – an odd, secret territory between the civilian and the military? Sinclair McKay’s book is the first history for the general reader of life at Bletchley Park, and an amazing compendium of memories from people now in their eighties – of skating on the frozen lake in the grounds (a depressed Angus Wilson, the novelist, once threw himself in) – of a youthful Roy Jenkins, useless at codebreaking, of the high jinks at nearby accommodation hostels – and of the implacable secrecy that meant girlfriend and boyfriend working in adjacent huts knew nothing about each other’s work.
Download or read book Secret Code Menace written by Pamela Cosman and published by . This book was released on 2015-11-26 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thoughtful and provocative fiction story about the science of secret codes and error correction. Sara, Derek and Jared have devised their own simple code to communicate with each other in class at school. When a written, coded message is amended en route to Sara and she gets into trouble, they start to explore how their simple code could use error correction to protect themselves against tampering by somebody.This is all a private hobby, until one day, on a school trip to a bank the class is caught up in an attempted bank robbery. Suddenly Sara, Derek and Jared's playing with codes - and with methods of error correction - has an urgent reality. The Secret Code Menace is part of the Cold Fusion series, published by Ransom Publishing, a specialist children's publisher. The series is designed for more able readers, gifted and talented children, and those who are curious, enjoy a challenge and like thinking outside the box. The Secret Code Menace is ideal for more able readers aged 9 - 12 with a reading age of 12 + .
Download or read book Secret Code Book Substitution Ciphers written by John Redden and published by Lulu.com. This book was released on 2017-09-02 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Secret Code Book is a short introduction to substitution ciphers. The chapters ease young readers into the concept of rotation ciphers and work their way up to the Vigenère cipher. Along the way, readers will also learn about geometric approaches to secret codes such as the Pigpen cipher. As a bonus, there is a brief description of frequency analysis and how it is used to crack secret codes. frper gpbqr obbx In addition, this book actively challenges readers with practice missions where answers are listed in the back. Also, there is a cut-out rotation template that is provided to make your very own cipher disk! After reading this book, you will have all the basic tools needed to create secret messages.
Download or read book Code Girls written by Liza Mundy and published by Hachette Books. This book was released on 2017-10-10 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: The award-winning New York Times bestseller about the American women who secretly served as codebreakers during World War II--a "prodigiously researched and engrossing" (New York Times) book that "shines a light on a hidden chapter of American history" (Denver Post). Recruited by the U.S. Army and Navy from small towns and elite colleges, more than ten thousand women served as codebreakers during World War II. While their brothers and boyfriends took up arms, these women moved to Washington and learned the meticulous work of code-breaking. Their efforts shortened the war, saved countless lives, and gave them access to careers previously denied to them. A strict vow of secrecy nearly erased their efforts from history; now, through dazzling research and interviews with surviving code girls, bestselling author Liza Mundy brings to life this riveting and vital story of American courage, service, and scientific accomplishment.
Download or read book Gravity Falls Lost Legends written by Alex Hirsch and published by Disney Electronic Content. This book was released on 2018-07-24 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Over 50 Secret Codes written by Emily Bone and published by Usborne Books. This book was released on 2024-04-02 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Code-cracking skills can be put to the test in this entertaining book which teaches children how to write and decode secret messages. Includes Semaphore and Morse code, the Grid code used in the American Civil War, Egyptian hieroglyphics, number replacement and alphabet switching codes and more. Each page features a different type of code, with an explanation of how it works and a practice code to crack. All answers are available at the back of the book.
Download or read book Codebreaker Girls written by Jan Slimming and published by Casemate Publishers. This book was released on 2021-03-03 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: “What would it be like to keep a secret for fifty years? Never telling your parents, your children, or even your husband?” Codebreaker Girls: A Secret Life at Bletchley Park tells the true story of Daisy Lawrence. Following extensive research, the author uses snippets of information, unpublished photographs and her own recollections to describe scenes from her mother’s poor, but happy, upbringing in London, and the disruptions caused by the outbreak of the Second World War to a young woman in the prime of her life. The author asks why, and how, Daisy was chosen to work at the Government war station, as well as the clandestine operation she experienced with others, deep in the British countryside, during a time when the effects of the war were felt by everyone. In addition, the author examines her mother’s personal emotions and relationships as she searches for her young fiancée, who was missing in action overseas. The three years at Bletchley Park were Daisy’s university, but having closed the door in 1945 on her hidden role of national importance — dealing with Germany, Italy and Japan — this significant period in her life was camouflaged for decades in the filing cabinet of her mind. Now her story comes alive with descriptions, original letters, documents, newspaper cuttings and unique photographs, together with a rare and powerful account of what happened to her after the war. “Here’s a beauty of a history of some of the codebreaking girls who helped save us during the second world war. This one’s about Daisy Lawrence’s extraordinary life as a poor girl brought up in London and then chosen for top secret work at Bletchley Park. Reads like fiction.” —Books Monthly
Download or read book Codes Ciphers and Secret Writing written by Martin Gardner and published by Courier Corporation. This book was released on 1984-01-01 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explains various methods used in cryptography and presents examples to help readers in breaking secret codes
Download or read book The Wisdom Codes written by Gregg Braden and published by Hay House, Inc. This book was released on 2021-05-04 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cutting edge of neurolinguistics meets the spiritual wisdom of the ages in a handbook of key words that literally rewire our brains. New discoveries in biology and the neurosciences are revealing how the structure of language-the words we think and speak-can actually change the way the neurons in our brains and hearts connect. But our ancestors understood this connection intuitively, thousands of years ago. They created specific word-patterns to provide comfort, healing, strength, and inner power in difficult times, and they encoded these powerful words in prayers, chants, mantras, hymns, and sacred writings to preserve them for future generations. Now beloved teacher and thought leader Gregg Braden cracks the code and puts these powerful words in your hands. Perfect as a pocket guide, a reference for spiritual study, or a gift to someone you love, this elegant, compact book contains Wisdom Codes that cut to the core of life's greatest tests, most challenging demands, and hardest lessons. You'll find chapters devoted to healing from loss and grief, facing your unspoken fears, finding certainty in the face of uncertain choices, and finding forgiveness, as well as ancient parables that offer a "fast track" to unraveling life's deepest mysteries. Each Wisdom Code-distilled from a quote, a scripture passage, or a parable-is accompanied by a brief discussion of what the code means, why it's important, and how to apply it in your life.
Download or read book The Secret Life of Kitty Granger written by G. D. Falksen and published by Carolrhoda Lab ®. This book was released on 2021-03-02 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sixteen-year-old Kitty Granger has always known that others consider her peculiar. She hates noise and crowds, tends to fixate on patterns, and often feels acutely aware of her surroundings even as she struggles to interpret the behavior of people around her. As a working-class girl in London's East End, she's spent her whole life learning to hide these traits. Until the day when she notices the mysterious man on the bus and finds herself following him, driven to know why he seems so out of place...only to accidentally uncover the location of a Russian spy ring. When Kitty's keen observation and quick thinking help her survive a dangerous encounter, two secret agents working for Her Majesty's government offer her a job in their espionage operation. Kitty's first mission pits her against a conspiracy led by a prominent politician―who's also a secret fascist. With help from an unusual team of fellow spies, Kitty must use her wits, training, and instincts to get out alive. And she might as well save the country while she's at it.
Download or read book The Secret Life of Word written by Robert Delwood and published by XML Press. This book was released on 2011-05-15 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Secret Life of Word looks at Microsoft Word from the perspective of technical and other professional writers. It gives writers an in-depth look at the hidden capabilities of Word, and shows how to take advantage of those capabilities without being a programmer. The Secret Life of Word will help you master the full gamut of Word mysteries, including AutoCorrect, QuickParts, BuildingBlocks, macros, Smart Tags, program-less VBA programming, and much more. There's something here for everyone who uses Microsoft Word, from new users to experts. Inside the Book Preface Introduction to Word Automation Creating Macros Find and Replace Fields, Form Fields, and Content Controls AutoCorrect and AutoText/Building Blocks Smart Tags Exchanging Data Code Samples Automation Related Topics Glossary, Bibliography, and Index
Download or read book The Secret Life of an American Codebreaker written by Jan Slimming and published by Pen and Sword Military. This book was released on 2022-02-24 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tale of a college student’s top-secret life: “A welcome addition to the seldom told story of the role of American women in [WWII] codebreaking.” —The Spectrum Monitor The Secret Life of an American Codebreaker is the true account of Janice Martin, a college student recruited to the military in 1943 after she was secretly approached by a professor at Goucher College, a liberal arts establishment for women in Baltimore, Maryland. Destined for a teaching career, Janice became a prestigious professor of classics at Georgia State University, but how did she spend three years of her secret life during the war working in Washington D.C.’s Top Secret Intelligence? Why was she chosen? How was she chosen? What did she do? This intriguing biography also delves into the stories of several other World War II codebreakers, male and female. With extensive research, unpublished photographs, and recorded interviews, we discover the life of Janice Martin from Baltimore and her Top Secret Ultra role in helping to combat U-boats in the Battle of the Atlantic, work she and her colleagues undertook in a foundation provided by both British and American intelligence. From the early days to D-Day and beyond, the book reveals the hidden figures who were part of this incredible time in history.
Download or read book The Science of Secrecy written by Simon Singh and published by . This book was released on 2000 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: A TV tie-in edition of The Code Book filmed as a prime-time five-part Channel 4 series on the history of codes and code-breaking and presented by the author. This book, which accompanies the major Channel 4 series, brings to life the hidden history of codes and code breaking. Since the birth of writing, there has also been the need for secrecy. The story of codes is the story of the brilliant men and women who used mathematics, linguistics, machines, computers, gut instinct, logic and detective work to encrypt and break these secrect messages and the effect their work has had on history.
