Mechanical calculator

Before Palm Pilots and iPods, PCs and laptops, the term "computer" referred to the people who did scientific calculations by hand. These workers were neither calculating geniuses nor idiot savants but knowledgeable people who, in other circumstances, might have become scientists in their own right. When Computers Were Human represents the first in-depth account of this little-known, 200-year epoch in the history of science and technology.

Beginning with the story of his own grandmother, who was trained as a human computer, David Alan Grier provides a poignant introduction to the wider world of women and men who did the hard computational labor of science. His grandmother's casual remark, "I wish I'd used my calculus," hinted at a career deferred and an education forgotten, a secret life unappreciated; like many highly educated women of her generation, she studied to become a human computer because nothing else would offer her a place in the scientific world.

The book begins with the return of Halley's comet in 1758 and the effort of three French astronomers to compute its orbit. It ends four cycles later, with a UNIVAC electronic computer projecting the 1986 orbit. In between, Grier tells us about the surveyors of the French Revolution, describes the calculating machines of Charles Babbage, and guides the reader through the Great Depression to marvel at the giant computing room of the Works Progress Administration.

When Computers Were Human is the sad but lyrical story of workers who gladly did the hard labor of research calculation in the hope that they might be part of the scientific community. In the end, they were rewarded by a new electronic machine that took the place and the name of those who were, once, the computers.

Stay one confident step ahead of the ever-evolving threat potential with today's most powerful IT security tools and techniques found in this practical resource. Written by an international team of security specialists, this one-stop reference gives you the latest expertise on everything from access control and network security, to smart cards and privacy, all conveniently organized in self-contained chapters to give you fast access to whatever answers, solutions, or guidance you may need. This total blueprint to security design and operations brings all modern considerations into focus. It maps out user authentication methods that feature the latest biometric techniques, followed by authorization and access controls including DAC, MAC, and ABAC and how these controls are best applied in today's relational and multilevel secure database systems. The book addresses network security in depth, offering a fresh look at anti-intrusion approaches, intrusion detection systems, authentication and authorization infrastructures, identity certificates, smart cards, and tokens. It also includes the latest encryption techniques, including algorithms to resist active and side channel attacks. Moreover, you find privacy-enhancing identity management tools, techniques for controlling website content, and even cybercrime investigation techniques that will help you turn the tables on attackers. Case studies of various Internet security applications round out this full collection of security tools that will prove indispensable in your ongoing efforts to safeguard IT systems from attack.

Based on more than forty interviews with Jobs conducted over two years—as well as interviews with more than a hundred family members, friends, adversaries, competitors, and colleagues—Walter Isaacson has written a riveting story of the roller-coaster life and searingly intense personality of a creative entrepreneur whose passion for perfection and ferocious drive revolutionized six industries: personal computers, animated movies, music, phones, tablet computing, and digital publishing.

At a time when America is seeking ways to sustain its innovative edge, and when societies around the world are trying to build digital-age economies, Jobs stands as the ultimate icon of inventiveness and applied imagination. He knew that the best way to create value in the twenty-first century was to connect creativity with technology. He built a company where leaps of the imagination were combined with remarkable feats of engineering.

Although Jobs cooperated with this book, he asked for no control over what was written nor even the right to read it before it was published. He put nothing off-limits. He encouraged the people he knew to speak honestly. And Jobs speaks candidly, sometimes brutally so, about the people he worked with and competed against. His friends, foes, and colleagues provide an unvarnished view of the passions, perfectionism, obsessions, artistry, devilry, and compulsion for control that shaped his approach to business and the innovative products that resulted.

Driven by demons, Jobs could drive those around him to fury and despair. But his personality and products were interrelated, just as Apple’s hardware and software tended to be, as if part of an integrated system. His tale is instructive and cautionary, filled with lessons about innovation, character, leadership, and values.
Some copies of CompTIA Security+ Study Guide: Exam SY0-501 (9781119416876) were printed without discount exam vouchers in the front of the books. If you did not receive a discount exam voucher with your book, please visit to download one.

Expert preparation covering 100% of Security+ exam SY0-501 objectives

CompTIA Security+ Study Guide, Seventh Edition offers invaluable preparation for Exam SY0-501. Written by an expert author team, this book covers 100% of the exam objectives with clear, concise explanation. You'll learn how to handle threats, attacks, and vulnerabilities using industry-standard tools and technologies, while understanding the role of architecture and design. From everyday tasks like identity and access management to complex topics like risk management and cryptography, this study guide helps you consolidate your knowledge base in preparation for the Security+ exam. Practical examples illustrate how these processes play out in real-world scenarios, allowing you to immediately translate essential concepts to on-the-job application. You also gain access to the Sybex online learning environment, which features a robust toolkit for more thorough prep: flashcards, glossary of key terms, practice questions, and a pre-assessment exam equip you with everything you need to enter the exam confident in your skill set.

This study guide is approved and endorsed by CompTIA, and has been fully updated to align with the latest version of the exam.

Master essential security technologies, tools, and tasks Understand how Security+ concepts are applied in the real world Study on the go with electronic flashcards and more Test your knowledge along the way with hundreds of practice questions

To an employer, the CompTIA Security+ certification proves that you have the knowledge base and skill set to secure applications, devices, and networks; analyze and respond to threats; participate in risk mitigation, and so much more. As data threats loom larger every day, the demand for qualified security professionals will only continue to grow. If you're ready to take the first step toward a rewarding career, CompTIA Security+ Study Guide, Seventh Edition is the ideal companion for thorough exam preparation.

C++ Primer Plus, Sixth Edition

New C++11 Coverage

C++ Primer Plus is a carefully crafted, complete tutorial on one of the most significant and widely used programming languages today. An accessible and easy-to-use self-study guide, this book is appropriate for both serious students of programming as well as developers already proficient in other languages.

The sixth edition of C++ Primer Plus has been updated and expanded to cover the latest developments in C++, including a detailed look at the new C++11 standard.

Author and educator Stephen Prata has created an introduction to C++ that is instructive, clear, and insightful. Fundamental programming concepts are explained along with details of the C++ language. Many short, practical examples illustrate just one or two concepts at a time, encouraging readers to master new topics by immediately putting them to use.

Review questions and programming exercises at the end of each chapter help readers zero in on the most critical information and digest the most difficult concepts.

In C++ Primer Plus, you’ll find depth, breadth, and a variety of teaching techniques and tools to enhance your learning:
A new detailed chapter on the changes and additional capabilities introduced in the C++11 standard Complete, integrated discussion of both basic C language and additional C++ features Clear guidance about when and why to use a feature Hands-on learning with concise and simple examples that develop your understanding a concept or two at a time Hundreds of practical sample programs Review questions and programming exercises at the end of each chapter to test your understanding Coverage of generic C++ gives you the greatest possible flexibility Teaches the ISO standard, including discussions of templates, the Standard Template Library, the string class, exceptions, RTTI, and namespaces Table of Contents

1: Getting Started with C++

2: Setting Out to C++

3: Dealing with Data

4: Compound Types

5: Loops and Relational Expressions

6: Branching Statements and Logical Operators

7: Functions: C++’s Programming Modules

8: Adventures in Functions

9: Memory Models and Namespaces

10: Objects and Classes

11: Working with Classes

12: Classes and Dynamic Memory Allocation

13: Class Inheritance

14: Reusing Code in C++

15: Friends, Exceptions, and More

16: The string Class and the Standard Template Library

17: Input, Output, and Files

18: The New C++11 Standard

A Number Bases

B C++ Reserved Words

C The ASCII Character Set

D Operator Precedence

E Other Operators

F The stringTemplate Class

G The Standard Template Library Methods and Functions

H Selected Readings and Internet Resources

I Converting to ISO Standard C++

J Answers to Chapter Reviews

Sams Teach Yourself SQL in 10 Minutes, Fourth Edition

New full-color code examples help you see how SQL statements are structured

Whether you're an application developer, database administrator, web application designer, mobile app developer, or Microsoft Office users, a good working knowledge of SQL is an important part of interacting with databases. And Sams Teach Yourself SQL in 10 Minutes offers the straightforward, practical answers you need to help you do your job.

Expert trainer and popular author Ben Forta teaches you just the parts of SQL you need to know–starting with simple data retrieval and quickly going on to more complex topics including the use of joins, subqueries, stored procedures, cursors, triggers, and table constraints.

You'll learn methodically, systematically, and simply–in 22 short, quick lessons that will each take only 10 minutes or less to complete.

With the Fourth Edition of this worldwide bestseller, the book has been thoroughly updated, expanded, and improved. Lessons now cover the latest versions of IBM DB2, Microsoft Access, Microsoft SQL Server, MySQL, Oracle, PostgreSQL, SQLite, MariaDB, and Apache Open Office Base. And new full-color SQL code listings help the beginner clearly see the elements and structure of the language.

10 minutes is all you need to learn how to...

Use the major SQL statements Construct complex SQL statements using multiple clauses and operators Retrieve, sort, and format database contents Pinpoint the data you need using a variety of filtering techniques Use aggregate functions to summarize data Join two or more related tables Insert, update, and delete data Create and alter database tables Work with views, stored procedures, and more Table of Contents

1 Understanding SQL

2 Retrieving Data

3 Sorting Retrieved Data

4 Filtering Data

5 Advanced Data Filtering

6 Using Wildcard Filtering

7 Creating Calculated Fields

8 Using Data Manipulation Functions

9 Summarizing Data

10 Grouping Data

11 Working with Subqueries

12 Joining Tables

13 Creating Advanced Joins

14 Combining Queries

15 Inserting Data

16 Updating and Deleting Data

17 Creating and Manipulating Tables

18 Using Views

19 Working with Stored Procedures

20 Managing Transaction Processing

21 Using Cursors

22 Understanding Advanced SQL Features

Appendix A: Sample Table Scripts

Appendix B: Working in Popular Applications

Appendix C : SQL Statement Syntax

Appendix D: Using SQL Datatypes

Appendix E: SQL Reserved Words

The 12th International Conference on Human-Computer Interaction, HCI Inter- tional 2007, was held in Beijing, P.R. China, 22-27 July 2007, jointly with the Symposium on Human Interface (Japan) 2007, the 7th International Conference on Engineering Psychology and Cognitive Ergonomics, the 4th International Conference on Universal Access in Human-Computer Interaction, the 2nd International Conf- ence on Virtual Reality, the 2nd International Conference on Usability and Inter- tionalization, the 2nd International Conference on Online Communities and Social Computing, the 3rd International Conference on Augmented Cognition, and the 1st International Conference on Digital Human Modeling. A total of 3403 individuals from academia, research institutes, industry and g- ernmental agencies from 76 countries submitted contributions, and 1681 papers, judged to be of high scientific quality, were included in the program. These papers address the latest research and development efforts and highlight the human aspects of design and use of computing systems. The papers accepted for presentation th- oughly cover the entire field of Human-Computer Interaction, addressing major - vances in knowledge and effective use of computers in a variety of application areas. This volume, edited by Julie A. Jacko, contains papers in the thematic area of Human-Computer Interaction, addressing the following major topics: • Multimodality and Conversational Dialogue • Adaptive, Intelligent and Emotional User Interfaces • Gesture and Eye Gaze Recognition • Interactive TV and Media
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