• IP Addresses: Classful Addressing

    IP Addresses: Classful Addressing

    The identifier used in the IP layer of the TCP/IP protocol suite to identify each device connected to the Internet is called the Internet address or IP address. An IP address is a 32-bit address that uniquely and universally defines the connection of a host or a router to the Internet. IP addresses are unique. They are unique in the sense that each address defines one, and only one, connection to the Internet. Two devices on the Internet can...

     120 p cit 03/05/2013 120 2

  • Lecture 3: Local Area Networks

    Lecture 3: Local Area Networks

    When computers are connected to a physical medium, there must be a way they can grab the attention of other computers to broadcast the message, "Here comes a frame!" Various technologies have different ways of doing this process, but all frames, regardless of technology, have a beginning signaling sequence of bytes. 10101010…….10101010 Depending up frame format: Preamble = 7 bytes, Start or Start of Frame Delimiter (SFD) = 1 byte 10101011.

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  • Visual Basic.NET - Chapter 7: Using Menus, Common Dialogs, Procedures, Functions, and Arrays

    Visual Basic.NET - Chapter 7: Using Menus, Common Dialogs, Procedures, Functions, and Arrays

    Add a StatusBar control by dragging the StatusBar button from the Toolbox window to the bottom of the Form1 form Add one PictureBox, one GroupBox, four RadioButtons inside the GroupBox, and two Buttons Add a ContextMenu control Add a FontDialog control Set the control properties as they appear in table 7-4 on pages VB 7.19 – VB 7.21

     50 p cit 17/04/2013 122 1

  • Visual Basic.NET - Chapter 8: Debugging, Creating Executable Files, and Distributing Debugging, Creating Executable Files, and Distributing Debugging, Creating Executable Files, and Distributing a Windows Application

    Visual Basic.NET - Chapter 8: Debugging, Creating Executable Files, and Distributing Debugging, Creating Executable Files, and Distributing Debugging, Creating Executable Files, and Distributing a Windows Application

    Insert the Data Disk in drive A Start Visual Basic .NET. When the Start Page appears, click the Open Project button Double-click the Chapter8 folder on the Data Disk Double-click the Today’s Sales Check folder. If necessary, click the Today’s Sales Check solution file Click the Open button

     50 p cit 17/04/2013 132 1

  • Programming with Microsoft Visual Basic 2005, Third Edition - Chapter 1: An Introduction to Visual Basic 2005

    Programming with  Microsoft Visual Basic 2005, Third Edition - Chapter 1: An Introduction to Visual Basic 2005

    Start and customize Visual Studio 2005 or Visual Basic 2005 Express Edition Create a Visual Basic 2005 Windows-based application Manage the windows in the IDE Set the properties of an object Restore a property to its default setting

     25 p cit 17/04/2013 157 1

  • Analysis and design of algorithms - chapter 8: Approximation Algorithms

    Analysis and design of algorithms - chapter 8: Approximation Algorithms

    Many problems of practical significance are NP-complete but are too important to abandon merely because obtaining an optimal solution is intractable. If a problem is NP-complete, we are unlikely to find a polynomial time algorithm for solving it exactly, but it may still be possible to find near-optimal solution in polynomial time. In practice, near-optimality is often good enough. An algorithm that returns near-optimal solutions is called...

     22 p cit 19/03/2013 130 1

  • Programming with Microsoft Visual Basic 2005, Third Edition - Chapter 2: Designing Applications

    Programming with  Microsoft Visual Basic 2005, Third Edition - Chapter 2: Designing Applications

    Plan an OO application in Visual Basic 2005 Complete a TOE (Task, Object, Event) chart Follow the Windows standards regarding the layout and labeling of controls Emphasis is on how to accomplish a task Flowchart Document representing program logic Standardized symbols show problem-solving steps Pseudocode English phrases describing the required steps It is harder to write a complex application using procedure oriented approach

     32 p cit 17/04/2013 146 1

  • Unit OS6: Device Management - 6.1. Principles of I/O Systems

    Unit OS6: Device Management - 6.1. Principles of I/O Systems

    These materials are part of the Windows Operating System Internals Curriculum Development Kit, developed by David A. Solomon and Mark E. Russinovich with Andreas Polze Microsoft has licensed these materials from David Solomon Expert Seminars, Inc. for distribution to academic organizations solely for use in academic environments (and not for commercial use)

     17 p cit 19/03/2013 125 1

  • Microsoft Visual Basic .NET: Reloaded - Chapter 8: Sequential access files and error handling

    Microsoft Visual Basic .NET: Reloaded - Chapter 8: Sequential access files and error handling

    Output files Files to which output is written Store output produced by the application Input Files Files that are read by the computer Application uses information stored in files Sequential Often referred to as “text files” Binary and Random Not covered in this text

     48 p cit 17/04/2013 118 1

  • Unit OS6: Device Management - 6.2. The Windows I/O System Components

    Unit OS6: Device Management - 6.2. The Windows I/O System Components

    These materials are part of the Windows Operating System Internals Curriculum Development Kit, developed by David A. Solomon and Mark E. Russinovich with Andreas Polze Microsoft has licensed these materials from David Solomon Expert Seminars, Inc. for distribution to academic organizations solely for use in academic environments (and not for commercial use)

     28 p cit 19/03/2013 109 1

  • Programming with Microsoft Visual Basic 2005, Third Edition - Chapter 3: Using Variables and Constants

    Programming with  Microsoft Visual Basic 2005, Third Edition - Chapter 3: Using Variables and Constants

    Declare variables and named constants Assign data to an existing variable Convert string data to a numeric data type using the TryParse method Convert numeric data to a different data type using the Convert class methods Explain the scope and lifetime of variables and named constants Explain the purpose of the Option Explicit and Option Strict statements

     33 p cit 17/04/2013 156 1

  • Programming with Microsoft Visual Basic 2005, Third Edition - Chapter 4: The Selection Structure

    Programming with  Microsoft Visual Basic 2005, Third Edition - Chapter 4: The Selection Structure

    Write pseudocode for the selection structure Create a flowchart to help you plan an application’s code Write an If...Then...Else statement Write code that uses comparison operators and logical operators Write pseudocode for the selection structure Create a flowchart to help you plan an application’s code Write an If...Then...Else statement Write code that uses comparison operators and logical operators

     50 p cit 17/04/2013 139 1

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