Breaking teleprinter ciphers at Bletchley Park : an edition of General report on Tunny with emphasis on statistical methods (1945) / / I.J. Good, D. Michie and G. Timms ; edited and with introductions and notes by James A. Reeds, Whitfield Diffie and J.V. Field

• Record Nr.: UNINA9910208954303321
• Autore: Good Irving John
• Pubbl/distr/stampa: Hoboken, New Jersey : , : John Wiley & Sons, Inc., , [2015]; [Piscataqay, New Jersey] : , : IEEE Xplore, , [2015]
• ISBN: 1-119-06160-1; 1-119-06161-X
• Descrizione fisica: 1 online resource (1118 p.)
• Disciplina: 652.8
• Soggetti: Cryptography - Great Britain - History - 20th century; World War, 1939-1945 - Electronic intelligence - Great Britain; Bletchley Park (Milton Keynes, England) History
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Preface xiii -- Editorial Notes xiv -- Notes on Vocabulary xiv -- List of Abbreviations xv -- Cryptanalytic Significance of the Analysis of Tunny, by Whitfield Diffie xvii -- Editors' Introduction, by Whitfield Diffie and J. V. Field xxv -- Statistics at Bletchley Park, by S. L. Zabell lxxv -- Biographies of Authors ciii -- Notes on the Editors of the Present Volume cvii -- List of Figures cix -- General Report on Tunny, with emphasis on statistical methods 1 -- Part 0: Preface -- Chapter 01: Preface 3 -- Part 1: Introduction -- Chapter 11: German Tunny 6 -- Chapter 12: Cryptographic Aspects 22 -- Chapter 13: Machines 32 -- Chapter 14: Organisation 35 -- Chapter 15: Some Historical Notes 39 -- Part 2: Methods of Solution -- Chapter 21: Some Probability Techniques 43 -- Chapter 22: Statistical Foundations 50 -- Chapter 23: Machine Setting 80 -- Chapter 24: Rectangling 110 -- Chapter 25: Chi-Breaking from Cipher 139 -- Chapter 26: Wheel-Breaking from Key 185 -- Chapter 27: Cribs 219 -- Chapter 28: Language Methods 237 -- Part 3: Organisation -- Chapter 31: Mr Newman's Section 262 -- Chapter 32: Organisation of the Testery 267 -- Chapter 33: Knockholt ; 268 -- Chapter 34: Registration and Circulation 269 -- Chapter 35: Tapemaking and Checking 271 -- Chapter 36: Chi-Breaking from Cipher 275 -- Chapter 37: Machine Setting Organisation 277 -- Chapter 38: Wheel-Breaking from Key, Organisation 280 -- Chapter 39: Language Methods 282 -- Part 4: Early Methods and History -- Chapter 41: The First Break 284 -- Chapter 42: Early Hand Methods 290 -- Chapter 43: Testery Methods 1942-44 298 -- Chapter 44: Hand Statistical Methods 305 -- Part 5: Machines -- Chapter 51: Introductory 309 -- Chapter 52: Development of Robinson and Colossus 312 -- Chapter 53: Colossus 316 -- Chapter 54: Robinson 336 -- Chapter 55: Specialized Counting Machines 346 -- Chapter 56: Copying Machines 350 -- Chapter 57: Simple machines 361 -- Chapter 58: Photographs 362 -- Part 6: Raw Materials -- Chapter 61: Raw Materials -- Production, with Plans of Tunny Links 381.; Part 7: References -- Chapter 71: Glossary and Index 387 -- Chapter 72: Notation 435 -- Chapter 73: Bibliography 441 -- Chapter 74: Chronology 444 -- Part 8: Conclusions -- Chapter 81: Conclusions 452 -- Part 9: Appendices -- Chapter 91: The 5202 Machine 456 -- Chapter 92: Recovery of Motor Patterns from De-chi 471 -- Chapter 93: Thrasher 482 -- Chapter 94: Research into the QEP System 484 -- Chapter 95: Mechanical Flags 488 -- Appendix A: Transmission of Teleprinter Signals, by J. A. Reeds 495 -- Appendix B: Activities at Knockholt, by J. A. Reeds 503 -- Appendix C: The 5202 Machine, by J. A. Reeds 530 -- Appendix D: Initial Conception of Colossus, by J. A. Reeds 535 -- Appendix E: List of Scanned Exhibits 540 -- Supplementary Glossary 542 -- Biographical Notes 547 -- Notes 561 -- Bibliography 624 -- Index 645.
• Sommario/riassunto: This detailed technical account of breaking Tunny is an edition of a report written in 1945, with extensive modern commentary Breaking Teleprinter Ciphers at Bletchley Park gives the full text of the General Report on Tunny (GRT) of 1945, making clear how the ideas, notation and the specially designed machines that were used differ from what was generally accepted in 1945, and, where a modern reader might be misled, from what is understood now. The editors of this book clarify the sometimes slightly strange language of the GRT and explain the text within a variety of contexts in several separate historical story lines, some only implicit in the GRT itself. The first story, told by the authors of the GRT, describes how, using specially designed machines, including from 1944 the "Colossus", the British broke the enciphered teleprinter messages sent by the highest command levels of the Germany Army. The cipher machines the Germans used were the Lorenz SZ 40 series, called "Tunny" by the British. The second story shows how the use of then-unfashionable Bayesian methods in statistics proved to be essential to the British success. The third story describes a significant stage in the invention of the modern digital computer. This story is connected with Alan Turing's 1936 paper on the theory of computability, which is nowadays seen as a starting point for the development of the modern digital computer. This book includes: . Over 200 pages of commentary, biographies, glossaries, and essays related to the text of the General Report on Tunny. The complete text of the original GRT, covering the general theory of Tunny breaking and of numerous refinements appropriate to special-case situations. All the examples of original worksheets and printouts, showing the Tunny-breaking process in action, that appear in the GRT The main purpose of this book is to present the actual words of the GRT for use by readers with a serious interest in the history of cryptography, computing, or mathematics.

Touch : five factors to growing and leading a human organization / / Tod Maffin, Mark Blevis

• Record Nr.: UNINA9910787060503321
• Autore: Maffin Tod
• Pubbl/distr/stampa: Toronto : , : Dundurn Press, , [2014]; ©2014
• ISBN: 1-4597-2876-9; 1-4597-2875-0
• Descrizione fisica: 1 online resource (337 p.)
• Disciplina: 658.4/038
• Soggetti: Information resources management; Industrial relations - Effect of technological innovations on; Management information systems; Electronic commerce
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: 1 A Letter to You From Us -- 2 The Five Factors -- 3 Touch Assessment -- 4 Leadership -- 5 Communications -- 6 Customer Service -- 7 Marketing -- 8 Web/Social -- 5 Human Resources -- 10 Legal -- 11 Another Letter to You From Us.
• Sommario/riassunto: For better or worse, digital business has fundamentally changed how organizations hire, market their services, and connect with stakeholders. The problem is, in an effort to use technology to connect more effectively, we have lost the humanity - that critical person-to-person connection. This book will show you how to restore that connection.

Vue.js Quick Start Guide / / Imsirovic, Ajdin

• Record Nr.: UNINA9910966030103321
• Autore: Imsirovic Ajdin
• Pubbl/distr/stampa: Birmingham, England, : Packt Publishing, 2018
• Descrizione fisica: 1 online resource (186 p.)
• Soggetti: COMPUTERS / Programming Languages / JavaScript; COMPUTERS / Web / General; COMPUTERS / Web / Web Programming
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Sommario/riassunto: Learn and explore all important features of Vue.js through a number of simple examples.Key FeaturesUses latest features such as Vue-cli 3, Vuex, and NuxtPractical examples to understand Vue 2 quicklyStep-by-step approach to reinforce concepts coveredBook DescriptionVue.js is the latest trending frontend framework. Simplicity, reactivity, and exibility are some of the key benefits that Vue offers to developers. This book will help you learn everything you need to know to build stunning reactive web apps with Vue.js 2 quickly and easily.This book will take you through the Vue 2 framework. You will start by learning the different Vue installation options: CDN, NPM, and Vue CLI. Then we will look at the core concepts of Vue: templates and components - ways to modularize Vue code. You will learn how to utilize directives, which are Vue-specific HTML attributes with additional features. Also, you will see how Vue uses a streamlined approach to development, with reusable methods, computed properties, and watchers, and how it controls state with the help of its data option.You will learn about the concepts of reactive programming in Vue, and how to understand communication between parent and child components. We will take a look at props and slots, working with CSS, filters, and mixins. We will also look at ways to add transitions and animations to Vue apps. Then you will extend Vue by building custom directives and your own ; plugins. Finally, you will learn about Vuex - a Vue plugin that allows us to centralize state, and also introduce Nuxt, which is a framework that builds on top of Vue and solves some issues of single-page applications. After learning about these components, you will be ready to build your own reactive web apps with Vue.js 2.What you will learnDevelop apps with Vue.jsReuse components using slotsUse filters, mixins, and global mixins in VueBuild custom directives in VueWork with CSS animationsWork with templates, directives, methods, data, computed properties, and watchersUse Nuxt and Vue-RouterBuild and deploy an SSR Vue appWho this book is forThis book is for people who want to learn and experience developing with Vue.js. Familiarity with HTML, CSS, and JavaScript will help you get the most from this book.