AdSense

Earn money from relevant ads on your website

Google AdSense matches ads to your site's content, and you earn money whenever your visitors click on them

For More Visit : www.adsense.com

Networking

In the world of computers, networking is the practice of linking two or more computing devices together for the purpose of sharing data. Networks are built with a mix of computer hardware and computer software.

Area Networks

Networks can be categorized in several different ways. One approach defines the type of network according to the geographic area it spans. Local area networks (LANs), for example, typically reach across a single home, whereas wide area networks (WANs), reach across cities, states, or even across the world. The Internet is the world's largest public WAN.

Network Design

Computer networks also differ in their design. The two types of high-level network design are called client-server and peer-to-peer. Client-server networks feature centralized server computers that store email, Web pages, files and or applications. On a peer-to-peer network, conversely, all computers tend to support the same functions. Client-server networks are much more common in business and peer-to-peer networks much more common in homes.

A network topology represents its layout or structure from the point of view of data flow. In so-called bus networks, for example, all of the computers share and communicate across one common conduit, whereas in a star network, all data flows through one centralized device. Common types of network topologies include bus, star, ring and mesh.

Hardware

1 Typical PC hardware

• • 1.1 Motherboard
  • 1.2 Power supply
  • 1.3 Storage controllers
  • 1.4 Video display controller
  • 1.5 Removable media devices
  • 1.6 Internal storage
  • 1.7 Sound card
  • 1.8 Networking
  • 1.9 Other peripherals
    • 1.9.1 Input
    • 1.9.2 Output
• 2 See also
• 3 Internet

Motherboard

Main article: Motherboard

The motherboard is the "heart" of the computer, through which all other components interface.

• Central processing unit (CPU) - Performs most of the calculations which enable a computer to function, sometimes referred to as the "brain" of the computer.
  • Computer fan - Used to lower the temperature of the computer; a fan is almost always attached to the CPU, and the computer case will generally have several fans to maintain a constant airflow. Liquid cooling can also be used to cool a computer, though it focuses more on individual parts rather than the overall temperature inside the chassis.
• Random Access Memory (RAM) - Fast-access memory that is cleared when the computer is powered-down. RAM attaches directly to the motherboard, and is used to store programs that are currently running.
• Firmware is loaded from the Read only memory ROM run from the Basic Input-Output System (BIOS) or in newer systems Extensible Firmware Interface (EFI) compliant

For more Visit: http://en.wikipedia.org

Web design

Web design is a process of conceptualization, planning, modeling, and execution of electronic media content delivery via Internet in the form of technologies (such as markup languages) suitable for interpretation and display by a web browser or other web-based graphical user interfaces (GUIs).

The intent of web design is to create a web site (a collection of electronic files residing on one or more web servers) that presents content (including interactive features or interfaces) to the end user in the form of web pages once requested. Such elements as text, forms, and bit-mapped images (GIFs, JPEGs, PNGs) can be placed on the page using HTML, XHTML, or XML tags. Displaying more complex media (vector graphics, animations, videos, sounds) requires plug-ins such as Flash, QuickTime, Java run-time environment, etc. Plug-ins are also embedded into web pages by using HTML or XHTML tags.

Improvements in the various browsers' compliance with W3C standards prompted a widespread acceptance of XHTML and XML in conjunction with Cascading Style Sheets (CSS) to position and manipulate web page elements. The latest standards and proposals aim at leading to the various browsers' ability to deliver a wide variety of media and accessibility options to the client possibly without employing plug-ins.

For more Visit: http://en.wikipedia.org

Dreamweaver CS3

Discover Adobe® Dreamweaver® CS3 software, which now includes CSS tools, Ajax components for building dynamic user interfaces, and intelligent integration with other Adobe software.

Flash Tutorial

Flash is a tool for creating interactive and animated Web sites! In our Flash tutorial you will learn how to start using Flash in your applications.

What you should already know

Before you continue you should have a basic understanding of the following:

• WWW, HTML and the basics of building Web pages

  What is Flash?

• Flash is a multimedia graphics program specially for use on the Web
• Flash enables you to create interactive "movies" on the Web
• Flash uses vector graphics, which means that the graphics can be scaled to any size without losing clarity/quality
• Flash does not require programming skills and is easy to learn

Flash vs. Animated Images and Java Applets

Animated images and Java applets are often used to create dynamic effects on Web pages.

The advantages of Flash are:

• Flash loads much faster than animated images
• Flash allows interactivity, animated images do not
• Flash does not require programming skills, java applets do

For more Visit: http://w3schools.com/flash

SOAP Tutorial

SOAP is a simple XML-based protocol to let applications exchange information over HTTP.

In our SOAP tutorial, you will learn what SOAP is, and how it uses XML to exchange information between applications.

SOAP is a simple XML based protocol to let applications exchange information over HTTP.

Or more simply: SOAP is a protocol for accessing a Web Service.

What You Should Already Know

Before you study SOAP you should have a basic understanding of XML and XML Namespaces.

What is SOAP?

• SOAP stands for Simple Object Access Protocol
• SOAP is a communication protocol
• SOAP is for communication between applications
• SOAP is a format for sending messages
• SOAP is designed to communicate via Internet
• SOAP is platform independent
• SOAP is language independent
• SOAP is based on XML
• SOAP is simple and extensible
• SOAP allows you to get around firewalls
• SOAP will be developed as a W3C standard

For more Visit: http://w3schools.com/soap

LEARN WEB DESIGN EASILY

You've come to the right website to learn web design ... no previous experience is required! Only seven simple tutorials and a total beginner will be designing websites quickly.

WHO THIS WEB SITE IS FOR?

How-to-build-websites.com is designed for total beginners and people who use programs like Dreamweaver, FrontPage, or other wysiwyg programs (wysiwyg stands for: "What You See Is What You Get") and now want to learn what's going on 'behind the scenes'.

To really understand web design, you need to learn HTML hand-coding; it's easier than you think!

WHY YOU SHOULD LEARN HTML?

Tools like Dreamweaver are great, especially if you are building old-style web sites based on tables, sliced images, et cetera. But if you want to be able to build what I call 4th generation websites, then these tools will get in the way of you learning and will actually slow you down!

Learning to build your web sites using HTML will give you far better control over the process and ultimately your web sites. You will have a far deeper understanding of the web, and as a result you will create better web sites quicker - much quicker.

ADO Tutorial

In our ADO tutorial you will learn about ADO, and how to use ADO to access databases from your Web.

What you should already know

Before you continue you should have a basic understanding of the following:

• WWW, HTML and the basics of building Web pages
• Active Server Pages (ASP)
• Structured Query Language (SQL)

What is ADO?

• ADO is a Microsoft technology
• ADO stands for ActiveX Data Objects
• ADO is a Microsoft Active-X component
• ADO is automatically installed with Microsoft IIS
• ADO is a programming interface to access data in a database

Accessing a Database from an ASP Page

The common way to access a database from inside an ASP page is to:

1. Create an ADO connection to a database
2. Open the database connection
3. Create an ADO recordset
4. Open the recordset
5. Extract the data you need from the recordset
6. Close the recordset
7. Close the connection

SQL Tutorial

SQL is a standard computer language for accessing and manipulating databases.

In this tutorial you will learn how to use SQL to access and manipulate data in Oracle, Sybase, SQL Server, DB2, Access, and other database systems.

What is SQL?

• SQL stands for Structured Query Language
• SQL allows you to access a database
• SQL is an ANSI standard computer language
• SQL can execute queries against a database
• SQL can retrieve data from a database
• SQL can insert new records in a database
• SQL can delete records from a database
• SQL can update records in a database
• SQL is easy to learn

SQL is a Standard - BUT....

SQL is an ANSI (American National Standards Institute) standard computer language for accessing and manipulating database systems. SQL statements are used to retrieve and update data in a database. SQL works with database programs like MS Access, DB2, Informix, MS SQL Server, Oracle, Sybase, etc.

Unfortunately, there are many different versions of the SQL language, but to be in compliance with the ANSI standard, they must support the same major keywords in a similar manner (such as SELECT, UPDATE, DELETE, INSERT, WHERE, and others).

For more Visit: http://w3schools.com/sql

.NET Mobile Tutorial

In this tutorial you will learn about .NET Mobile.

This tutorial is about how to develop mobile applications with an extension to the .NET Framework, called the Microsoft Mobile Internet Toolkit (MMIT) or simply .NET Mobile.

Introduction to .NET Mobile

Background

Cell phones (mobile telephones) have become part of our life style.

One exciting thing about mobile devices is their ability to connect to the Internet and to execute web applications.

Mobile applications can now be developed to deliver any types of data, to any user, any place in the world!

Different mobile devices support different programming languages. Some support WAP and WML, some support HTML or a limited version of HTML, and some support both or a different language.

To support all types of mobile devices, developers must create one different application for each language.

With .NET Mobile, Microsoft has introduced a new platform for developing mobile applications.

This tutorial is about how to develop applications with an extension to the .NET Framework, called the Microsoft Mobile Internet Toolkit (MMIT) or simply .NET Mobile.

What You Should Already Know

Before you continue you should have a basic understanding of the following:

• HTML / XHTML
• XML namespaces
• ASP .NET

.NET Mobile

.NET Mobile is an extension to Microsoft ASP.NET and the Microsoft's .NET Framework.

.NET Mobile is a set of server-side Forms Controls to build applications for wireless mobile devices.

These controls produce different output for different devices by generating WML, HTML, or compact HTML.

XML Tutorial

XML stands for Extensible Markup Language.

XML was designed to transport and store data.

In this tutorial you will learn about XML, and the difference between XML and HTML.

XML is important to know, and very easy to learn.

What You Should Already Know

Before you continue you should have a basic understanding of the following:

• HTML
• JavaScript

What is XML?

• XML stands for EXtensible Markup Language
• XML is a markup language much like HTML
• XML was designed to carry data, not to display data
• XML tags are not predefined. You must define your own tags
• XML is designed to be self-descriptive
• XML is a W3C Recommendation.

The Difference Between XML and HTML

XML is not a replacement for HTML.
XML and HTML were designed with different goals:

XML was designed to transport and store data, with focus on what data is.
HTML was designed to display data, with focus on how data looks.

HTML is about displaying information, while XML is about carrying information.

For more Visit:http://w3schools.com/xml

XHTML Tutorial

XHTML is a stricter and cleaner version of HTML.

In this tutorial you will learn the difference between HTML and XHTML. We will also show you how this Web site was converted to XHTML.

What You Should Already Know

Before you continue you should have a basic understanding of the following:

• HTML and the basics of building web pages

What Is XHTML?

• XHTML stands for EXtensible HyperText Markup Language
• XHTML is aimed to replace HTML
• XHTML is almost identical to HTML 4.01
• XHTML is a stricter and cleaner version of HTML
• XHTML is HTML defined as an XML application
• XHTML is a W3C Recommendation

XHTML is a W3C Recommendation

XHTML 1.0 became a W3C Recommendation January 26, 2000.

W3C defines XHTML as the latest version of HTML. XHTML will gradually replace HTML.

PHP Tutorial

PHP is a powerful server-side scripting language for creating dynamic and interactive websites.

PHP is the widely-used, free, and efficient alternative to competitors such as Microsoft's ASP. PHP is perfectly suited for Web development and can be embedded directly into the HTML code.

The PHP syntax is very similar to Perl and C. PHP is often used together with Apache (web server) on various operating systems. It also supports ISAPI and can be used with Microsoft's IIS on Windows.

What You Should Already Know

Before you continue you should have a basic understanding of the following:

• HTML / XHTML
• Some scripting knowledge

  What is PHP?

• PHP stands for PHP: Hypertext Preprocessor
• PHP is a server-side scripting language, like ASP
• PHP scripts are executed on the server
• PHP supports many databases (MySQL, Informix, Oracle, Sybase, Solid, PostgreSQL, Generic ODBC, etc.)
• PHP is an open source software (OSS)
• PHP is free to download and use

What is a PHP File?

• PHP files may contain text, HTML tags and scripts
• PHP files are returned to the browser as plain HTML
• PHP files have a file extension of ".php", ".php3", or ".phtml"

What is MySQL?

• MySQL is a database server
• MySQL is ideal for both small and large applications
• MySQL supports standard SQL
• MySQL compiles on a number of platforms
• MySQL is free to download and use

PHP + MySQL

• PHP combined with MySQL are cross-platform (means that you can develop in Windows and serve on a Unix platform)

Why PHP?

• PHP runs on different platforms (Windows, Linux, Unix, etc.)
• PHP is compatible with almost all servers used today (Apache, IIS, etc.)
• PHP is FREE to download from the official PHP resource: www.php.net
• PHP is easy to learn and runs efficiently on the server side

Where to Start?

• Install an Apache server on a Windows or Linux machine
• Install PHP on a Windows or Linux machine
• Install MySQL on a Windows or Linux machine

for more Visit: http://www.w3schools.com/php

AJAX Introduction

What You Should Already Know

Before you continue you should have a basic understanding of the following:

• HTML / XHTML
• JavaScript

AJAX = Asynchronous JavaScript and XML

AJAX is not a new programming language, but a technique for creating better, faster, and more interactive web applications.

With AJAX, your JavaScript can communicate directly with the server, using the JavaScript XMLHttpRequest object. With this object, your JavaScript can trade data with a web server, without reloading the page.

AJAX uses asynchronous data transfer (HTTP requests) between the browser and the web server, allowing web pages to request small bits of information from the server instead of whole pages.

The AJAX technique makes Internet applications smaller, faster and more user-friendly.

AJAX is a browser technology independent of web server software.

AJAX is Based on Web Standards

AJAX is based on the following web standards:

• JavaScript
• XML
• HTML
• CSS

The web standards used in AJAX are well defined, and supported by all major browsers. AJAX applications are browser and platform independent.

for more visit : http://www.w3schools.com/ajax

Airtel and Reliance to offer internet through DTH

Bharti Airtel and Reliance Communications are two companies which are all set to enter the Indian Direct to Home market by launching their services.

They would take on the existing players in the segment including Zee Dish TV and Tata Sky DTH.

However, one interested aspect of their upcoming services is that both Reliance and Airtel are planning to offer satellite-based broadband internet services along with regular DTH services.

Bharti Airtel president, broadband and telephone services, Atul Bindal spoke about their plans: “Satellite internet is a North American model. There are a lot of areas where Bharti would possibly never lay copper cable as it does not make economic sense. In these areas, Bharti will look at a offering broadband through Wi-Max or through DTH.”

Reliance in addition to internet services is also considering offering other services like video on demand to attract more customers to their upcoming BlueMagic service.

Anil Ambani's DTH to beam this month via 100 channels

Big TV Ltd, a fully owned subsidiary of Anil Ambani-led Reliance Communications (RCOM), will launch direct-to-home (DTH) services commercially by the end of this month. Budget 2008-09.It expects to offer DTH services to over 10 million subscribers across the country and feed to over 15 million households.

Big TV will offer set-top boxes (STBs) at Rs 1,000-Rs 1,500, along with a monthly subscription package of Rs 300, which will entitle them to watch the channels being aired; it will also provide subscribers Rs 100 worth pay-per view (PPV) movies. They will have access to 30 PPV channels showing Bollywood, Hollywood and regional films.

Sumit Chowdhury, CIO, Reliance Communications, said: "The DTH service will commercially launch before the end of March."He declined to give the number of channels and other details but sources said that Big TV will offer around 100 channels initially. Later, the company is expected to increase the number of channels to 300.

Industry sources said the launch is likely only in May 2008 as the hardware is not yet ready, and the company will prefer the launch after school vacation commences on May 2008 though it was not independently confirmed.Meanwhile, Chowdhury said Wimax technology isn't cost-effective at present due to spectrum shortage. Nationwide launch of Wimax services will depend on the availability of more spectrum, he said.

At present, the DTH market is dominated by two private players — Essel group's Dish TV and TataSky, which is a joint venture between the Tatas and Rupert Murdoch's Star Group.Dish TV, the first DTH player in the country, has around 3 million subscribers, while TataSky has over 1.7 million. Apart from these, Bharti group and Sun TV will also launch DTH in by year-end. According to an estimate, the DTH reach in India is likely to expand from 2.5 million households now to 16 million by 2010.

Unlike cable, DTH is a more organised and a less-regulated business. With heavyweights foraying into the space, the DTH segment is set to outpace digital cable in the near term and become a 14 million home market by fiscal 2010.

Adobe Photoshop CS3 for education

Adobe® Photoshop® CS3 software gives educators and students the groundbreaking technology they need to bring extraordinary images to life. They can confidently create, edit, and enhance photos with the same tools used by top creative professionals and photographers. With smooth file handling and an intuitive workspace that can be customized, it’s easier than ever for students and educators to create visually compelling images for reports, presentations, school publications, advertisements, posters, brochures, websites, and course materials.



For more Visit: http://www.adobe.com/education

J2ME Core Concepts & Introduction

At the heart of Java 2 Micro Edition (J2ME) are three core concepts: configurations, profiles, and optional packages. You can't write a J2ME application without understanding these concepts, because they determine the features of Java that you can use, which application programming interfaces (APIs) are available, and how your applications are packaged.

Configurations

A configuration is a complete Java runtime environment, consisting of three things:

• A Java virtual machine (VM) to execute Java bytecode.
• Native code to interface to the underlying system.
• A set of core Java runtime classes.

  J2ME Introduction

  What is J2ME? Cut away the hype and the excess fat and you are left with yet another (set of) Java APIs. Since these APIs cannot run on a traditional Java Virtual Machine (JVM), due to the limited size of mobile devices in regards to memory and resource availability, J2ME defines a limited version of the JVM as well. In a nutshell:

  J2ME combines a resource constrained JVM and a set of Java APIs for developing applications for mobile devices.

  Do you, as a developer, have to install this JVM and the APIs on mobile devices? No. Device manufacturers install and prepackage their devices with this JVM (and associated APIs). As a developer, you only need to develop applications targeting these devices and install them. Easier said than done!

  J2ME can be divided into three parts, as shown in Figure 1: a configuration, a profile, and optional packages. A configuration contains the JVM (not the traditional JVM, but the cut-down version) and some class libraries; a profile builds on top of these base class libraries by providing a useful set of APIs; and optional packages, are well, an optional set of APIs that you may or may not use when creating your applications. Optional packages are traditionally not packaged by the device manufacturers, and you have to package and distribute them with your application. The configuration and profile are supplied by the device manufacturers and they embedded them in the devices.

• more visit: http://today.java.net
  

Visual Studio 2008

In early 2007, Visual Studio celebrated its tenth anniversary. With the release of Visual Studio 2008, let’s take a moment to reflect on the product's evolution.

The first release of Visual Studio in 1997 featured separate IDEs (that required their own installation) for Visual C++, Visual Basic, J++, and a tool known as InterDev. Visual Studio 6.0 was a dramatic improvement that marked the birth of Visual Basic 6 and embodied the idea of a set of unified services across all languages.

With Visual Studio .NET 2002 and Visual Studio .NET 2003, this vision was realized with the .NET Framework. For the first time an individual developer could write an application in the language of their choosing while taking advantage of a common set of tools including designers, drag and drop controls, and IntelliSense. Along with the increase of individual developer productivity was an increase in the size and complexity of development projects and teams.

Visual Studio 2005 was born to help developers in teams of any size increase collaboration and reduce development complexity. With each progressive release, Microsoft has reaffirmed its commitment to empowering the developer by creating a dialogue with the community to help incorporate feedback and improve the product. Visual Studio 2008 is no exception. Visual Studio 2008 delivers on the commitment to make every software project successful on the Microsoft platform.

for more go to http://msdn2.microsoft.com

WiMAX the latest of all!

A change this big is called a new standard.

Mobile WiMAX isn't just changing the wireless broadband experience. It's redefining it. WiMAX is blazing past the old standards for wireless broadband and replacing them with a wireless Internet experience as it was meant to be: pervasive, mobile, and fast. There is a mobile broadband revolution going on. And Intel® Centrino® processor technology and WiMAX are poised to be at the center of it.

A hotspot the size of a city.

Once available, WiMAX will blanket your city in wireless connectivity, similar to how cell phone coverage works. You can find service in countless locations, not just cafes and airports. You can connect in a park or in a parked car. With the WiMAX option in our next-generation Intel® Centrino® processor technology-based notebooks, you'll enjoy the freedom of high-speed Internet all over town.

Take everything to go.

With speeds similar to broadband or DSL, WiMAX will let you run all your data-intensive applications in places much more convenient than your desk. Internet, e-mail, online multimedia, live video conferencing, mobile TV, music downloads...there's not much a network cable can do that WiMAX can't. Other than keeping you stuck at a desk, that is.

Reliance wimax in Bangalore

The last thing I heard about Reliance wimax was from a friend in Bangalore who told me that reliance wimax has been launched in Bangalore and the prices are pretty good and at par with other adsl and cable services.
I have always liked the idea of wimax from the very begining as it is wireless and a local powercut wont make any difference if youv got power backup for your pc or laptop which would run for a couple of hours on batteries anyway.. you will not get any disconnections.

This reliance wimax broadband is only available at Bangalore but will soon be available at many other cities and towns across the country. I just cant wait anymore I would love to see this wimax to come to Newdelhi and I will be the first one to apply as soon as I get to know about the launch.

If you have anythng to add to this please leave a reply so we can all share anything and everything we know about reliance wimax and especially those who are using wimax at bangalore please leave your comments about their service and quality of the wimax internet connection.

Windows Vista SP1 Update

Today, you can now download Windows Vista SP1 via Windows Update. For those of you eager to receive the benefits of Windows Vista SP1, you can now do so. We've seen quite a bit of questions in our comments so we want to communicate as much as possible surrounding Windows Vista SP1 and today's release to Windows Update as we can.

For those of you happy to wait, sit tight because SP1 will start downloading to PCs automatically beginning in mid-April (remember, this happens only if you have your Windows Update configured to automatically download updates and SP1 will automatically download but not automatically install). But if you want to get the benefit of a year's worth of improvements right now, go check Windows Update today (hit the Start Menu, All Programs, and select Windows Update).

For more information logon to http://windowsvistablog.com

IPV6 - Generation Next....

By the early 1990s, it was clear that the change to a classless network introduced a decade earlier was not enough to prevent IPv4 address exhaustion and that further changes to IPv4 were needed. By the beginning of 1992, several proposed systems were being circulated and by the end of 1992, the IETF announced a call for white papers and the creation of the "IP, the Next Generation" (IPng Area) of working groups.

IPng was adopted by the Internet Engineering Task Force on July 25, 1994 with the formation of several "IP Next Generation" (IPng) working groups. By 1996, a series of RFCs were released defining IPv6, starting with RFC 2460. (Incidentally, IPv5 was not a successor to IPv4, but an experimental flow-oriented streaming protocol intended to support video and audio.)

It is expected that IPv4 will be supported alongside IPv6 for the foreseeable future. IPv4-only nodes (clients or servers) will not be able to communicate directly with IPv6 nodes, and will need to go through an intermediary; see Transition mechanisms below.

For more informatin login to Wikipdeia Page Source

OSI Seven Layer Model & Seminar Outline

This seminar will present TCP/IP communications starting from Layer 2 up to Layer 4 (TCP/IP applications cover Layers 5-7)

• IP Addresses
• Data Link Layer
  • Network Frames
  • Address Resolution Protocol
• Network Layer
  • Internet Protocol
  • IP Routing
  • ICMP Error Reporting
• Transport Layer
  • User Datagram Protocol
  • Transmission Control Protocol
• Session through Application Layers
  • Domain Name System
• Final example tracing DNS transaction through a router.

I will continue in next post.

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