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    Title Page
    Copyright Page
    Deitel® Series Page
    Dedication
    Trademarks
    Contents
    Preface
    Before You Begin
    1. Introduction to Computers and the Internet
    1.1. Introduction
    1.2. The Internet in Industry and Research
    1.3. HTML5, CSS3, JavaScript, Canvas and jQuery
    1.4. Demos
    1.5. Evolution of the Internet and World Wide Web
    1.6. Web Basics
    1.7. Multitier Application Architecture
    1.8. Client-Side Scripting versus Server-Side Scripting
    1.9. World Wide Web Consortium (W3C)
    1.10. Web 2.0: Going Social
    1.11. Data Hierarchy
    1.12. Operating Systems
    1.13. Types of Programming Languages
    1.14. Object Technology
    1.15. Keeping Up-to-Date with Information Technologies
    Self-Review Exercises
    Answers to Self-Review Exercises
    Exercises
    2. Introduction to HTML5: Part 1
    3. Introduction to HTML5: Part 2
    4. Introduction to Cascading Style Sheetsâ„¢ (CSS): Part 1
    5. Introduction to Cascading Style Sheetsâ„¢ (CSS): Part 2
    6. JavaScript: Introduction to Scripting
    7. JavaScript: Control Statements I
    8. JavaScript: Control Statements II
    9. JavaScript: Functions
    10. JavaScript: Arrays
    11. JavaScript: Objects
    12. Document Object Model (DOM): Objects and Collections
    13. JavaScript Event Handling: A Deeper Look
    14. HTML5: Introduction to canvas
    15. XML
    16. Ajax-Enabled Rich Internet Applications with XML and JSON
    17. Web Servers (Apache and IIS)
    18. Database: SQL, MySQL, LINQ and Java DB
    19. PHP
    20. Web App Development with ASP.NET in C#
    21. Web App Development with ASP.NET in C#: A Deeper Look
    22. Web Services in C#
    23. Web App Development with ASP.NET in Visual Basic
    A. HTML Special Characters
    B. HTML Colors
    C. JavaScript Operator Precedence Chart
    D. ASCII Character Set
    Index
    24. Web App Development with ASP.NET in VB: A Deeper Look
    25. Web Services in Visual Basic
    26. JavaServerâ„¢ Faces Web Apps: Part 1
    27. JavaServerâ„¢ Faces Web Apps: Part 2
    28. Web Services in Java
    29. HTML5 WebSockets and Web Workers [This content is currently in development.]
    E. Number Systems
    F. Unicode®
    Online Access
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    1. Introduction to Computers and the Internet > 1.12. Operating Systems

    1.12. Operating Systems

    Operating systems are software systems that make using computers more convenient for users, application developers and system administrators. Operating systems provide services that allow each application to execute safely, efficiently and concurrently (i.e., in parallel) with other applications. The software that contains the core components of the operating system is called the kernel. Popular desktop operating systems include Linux, Windows 7 and Mac OS X. Popular mobile operating systems used in smartphones and tablets include Google’s Android, Apple’s iOS (for iPhone, iPad and iPod Touch devices), BlackBerry OS and Windows Phone 7.

    1.12.1. Desktop and Notebook Operating Systems

    In this section we discuss two of the popular desktop operating systems—the proprietary Windows operating system and the open source Linux operating system.


      

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