Thursday, 5 July 2012

What is WEB 3.0


WEB 3.0
Web  3.0 is the next generation of the Web. It is believed to make search tasks faster and easier by acting as as personal assistant. The browser may remember the interest of the user while browsing. The user can be less specific in the searches.

Blogging Tips

What is XML


     XML stands for Extensible Markup Language. It means that the user can define his own set of tags. It Makes XML more flexible than HTML. XML tags represent the logical structure of data and can be interpreted and used in different ways by different applications.

     XML inherits the features of SGML and combines the features of HtML with it.The major framework is taken from SGML.

   XML is a Metá language to describe other languages. It can used to create a markup language for a specific purpose. XML resembles and complements HTML. XML describes data, such as student name, marks and address. HTML defines the tags that describe the display of data such as with bulleted list or table. XML allows the developers, to define an Unlimited set of tags thus bringing great flexibility to the users.

What is web 2.0


Web 2.0:

Web 2.0 is a set of tethniques that provide an upgiaded presentation and usefulness for World Wide Web. It provides, more opportunities for individuals to collaborate with one another and create new•content using applications like blogs, wikis and podcasts.

Blogs and Vlogs:
Blog stands for Web log. It is a Web site that contains, a writers reflections and comments. Many free sites ptovide. the facility to set up a blog such as www.blogspot.com. Vlog stands for vidèo log. It is a set of personal videos. Many vlogs are posted on YouTube.

Wiki:
A wiki is an online information source that, can be edited, deleted or modified by anyone. A wiki may contains errors and it should not be used as a primary research source. The most popular wiki is Wikipedia.

Podcasts and Vodcasts:
A podcast is a combination of the words iPod and broadcast, It is a program in digital format available for download and replay. Most podcasts are available for free.itunes is a popUlar source. A User can create podcast with software and a microphone.
vodcastfor video podcast. It refers to online delivery of video clip on demand.
Some Popular Video-sharing Web sites are as follows:
Youtube
itunes


Social networking:
Social networking is a group of individuals creating a community. It is used to share pictures and common interests. Some examples of social networking sites are as follows:

 Linked in
 Ning

Tagging:
A tag is a user-generated word o phrase that helps in organizing Web content. Web developers refer to these tags as metatags. The tags helps in locating a Web page or blog when people search.
Collaboration Tools:
Collaboration tools assist people work online as team, Google docs allows Web-based collaboration on Word documents, spreadsheets and presentations.

What is HTML


HTML stands for Hyper Text Markup Language. It was deve1oped in early 1990s. It is a formatting language used to develop web pages. Hypertext means That   HTML marks certain words in the document as links to other parts of the same document or other document. When the user clicks on a link browser stars displaying the document attached to that link.
     HTML is not a programming language.It is used to define text,Graphics,audio and video in web pages.It uses tags or markups to specify how the content of web pages will be displayed. HTML code can be written in any text editor like Notepad.
     HTML was developed a few years ago as a subset of SGML. SGML stands, for
Structured Generalized Mark-upS Language It also describes formatting and hypertext links, and different compóneñts of a document. It is. basically an application-oriented document format. SGML is not ideal for transmission across the Internet to different types of computers and browser applications.
     HTML is simpler than SGML. It was designed for use over the Internet in the form of Web pages. HTML is more suited for this purpose. It is used tO design and create pages for different types of users of the Web.

Scripting Languages


A type of language used to write scripts is called scripting language. Scripting languages are used with interpreters. It means that a program develope with a scripting language must be run in the environment that contains the interpreter of scripting language. It cannot be executed as a stand-alone application. Scripting language is easier to learn.
Different scripting languages are as follows:

1. Java
Java is a popular object-oriented programming language. It was developed by Sun Microsystem. It is used to write stand-alone applications, applets and servlets. Java source code is compiled into bytecode instread of object code. Bytecode cannot be executed by operating system. it is executed by Java interpreter.
The code used to create Java application is. called JavaBeans or Beans. it is platform indepedent and can run on different types of computers or operating systems.

2. JavaScript
JavaScript is an interpreted language that is used to add dynamic contents in Web pages. It is used to include messages, scrolling text, animations, menus, pop-up windows etc. JavaScript is directly embedded in HTML.
JavaScript was developed by Sun Microsystems and Netscape Communicator. It is an open language. It can be used without purchasing. Netscape supports JavaScript and Internet Explorer supports JScript. JScript is a subset of JavaScript.

3. VBScript
VBScript is an interpreted language that is used to add dynamic contents in Web
pages. It is used to include messages, scrolling text, animations, menus, pop-up windows etc. VBScript is directly embedded in HTML.

4.PERL
PERL stands for Practical Extraction and Report Language. It was developed by Larry Wall at NASA’s Jet Propulsion Laboratory. it is a powerful language for writing scripts.

5. DHTML:-
DHTML stands for Dynamic Hyper Text Markup Language. It is used to add dynamic contents and interactivity in web pages. It is used to apply colors and add animations etc. It uses documents object model (DOM), style sheets and scripting languages.
• Document Object Model: It defines the contents of web page as objects. It considers fonts, graphics nd tables as objects.
Scripting Languages.
• Style Sheet: Style sheet contains the characteristics of a document. Cascading style
sheet contains the formatting details of each object in the document. Different style
sheets can be used for applying different formatting to different objects.
• Scripting Language: Scripting language is used to manipulate the objects in the web page. A script can move, display, or change the appearance of an object as different events occur.

6. XML:-
XML stands for Extensible Markup Language. It allows developers to create
customized tags. It is used to send complete record from server to the client that reduces
network traffic. It can also be used to create a link that points to multiple websites. It uses
Extensible Stylesheet Language (XSL) as its style sheet specification.

7.XTHML:-
XHTML stands for extensible Hypertext Markup Language. It combines the
formatting strengths of HTML 4.0 and the data structure and extensibility strengths of XML.
It uses the tags and attributes of HTML along with the sy of XML. The first version of
XHTML 1.0 was released in 2000. The World Wide Web Consortium (W3C) sets the
standards for XHTML and other internet languages.

8.WML:-
WML stands for Wireless Markup Language. Itis used to design web pages for
microbrowsers. It is mostly used for handheld computers, cellular telephones and pagers. It uses Wireless Application Protocol (WAP) as astandard. WAP defines how wireless devices communicate with the Web.

9. The .NET Platform:-
.NET Platform is created by Microsoft. It is used to develop applications with XML
Web services. These services are used to share data between Web applications created in any programming language and any operating system. It provides easier way of communication.
.NET applicalions run under any web browser and any type of .NET-compliant smart
client. A computer or a device that can accesses XML Web services is called .NET-compliant
smart client. Different .NET-compliant smart clients are personal cothputers, notebooks,
handheld computers, web-enabled telephones, Tablet PC and XbOXTM.
Tablet PC is a mobile computer that uses Windows XP operating system. It supports
pen input and provides voice recognition facility. XboxTM is video game console. It provides
the facility to update games regularly. It also allows interacting with other games via
broadband Internet connection.
Visual Studio .NET (VS.NET) is a set of tools to. develop applications for .NET platform. It provtdes editors for cascading style sheets, XML and HTML. It supports more
than 25 programming languages. Visual Basic .NET (VB.NET), Visual C++®.NET andVisual C#Th .NET are three popular languages.

10. Web Page Authoring Software .
Web page authoring software is used to develop web pages with graphical images,
video, audio, animation etc. It is also called HTML editor. It also generates HTML tags as the
user designs web pages. HTML tags can be customized to modify the look of web page.
Popular web page authoring software are Macromedia Dreamweaver, Microsoft FrontPage, Adobe GoLive and Macromedia Flash.

Webpage program Development


Web Page Program Development
A collection of connected documents on. the Internet is called World Wide Web. Each document is called a web page. It may consist of text, graphics, audio or video etc. The developer of web pages are called web page authors.
Different techniques used to develop web pages are as follows:

1. HTML
HTML stands for Hyper Text Markup Language. It is a formatting language used to
develop web pages. Web pages can be viewed in a web browser. Internet Explorer and
Netscape Navigator are two most popular web browsers.
HTML is not a programming language. It is used to define text, graphks, audio and
video in web pages. It uses tags or markups to specify how the contents of web page will be
displayed. HTML code can be written in any text editor like Notepad.

2. Scripts
Script is an interpreted program that runs on the client computer. It is written in a
scripting language. An interpreted language used to write scripts is called scripting language.

3. Applet
Applet is a sz Java program that can be embedded in HTML. It runs faster than
script because it is compiled. Applet is different from. Java applications. It cannot access
certain resources on the local computer such as files and serial devices like modems, printers,
etc. It is also prohibited from communicating with most other computers across a network.
Normally, an applet can only connçct to the computer from which the applet was sent.

4. Servlet
An applet that runs on a• web server is called serviet. It responds to requests from
clients. Servlets extend a Web server by generating content dynamically.

5. ActiveX Controls
ActiveX is a set of object-oriented technologies that allow components on a netwok to
communicate with one another. ActiveX control runs on client computer instead of server,
I Advantages of using Scripts, Applets, Servlets & ActiveX Controls
There are many advantages of using scripts, applets, servlets and ActiveX controls.
They provide the following facilities:

• Multimedia Effects: They add special multimedia effects to web pages such as
animated graphics, scrolling text, calendars and advertisements etc.
• Interactive Capabilities: They provide interactive capabilities to web pages.
• Counters: They are used to create counter for websites. A counter is used to track the
number of visitors to a website.
• Image Map: A graphic that is used as a hyperlink is called image map. Different.
parts of the same image may link to different web pages.
• Processing Forms: Processing forms are used to collect data from visitors. The information entered in the forms is processed by scripts or applets.
• CGI Programs: CCI stands for Common Gateway Interface. It is a standard that defines how web server communicates. with outside sources. A program that manages this communication is known as CGI program or CGI script.

Web Hosting Technologies and Web publishing


Web hosting technologies:

Different web hosting technologies are aà follows:

• Windows Hosting: Windows hosting is the hosting of web services running on
Windows operating system. It should be used if the user wants to use ASP (Active Server Pages) as server scripting or a database like Microsoft Access or Microsoft SQL Server. Windows hosting is also the best to develop web site using Microsoft Front Page.
• Unix Hosting: Unix hosting is the hosting of web services running on Unix operating system. Unix was the first web server operating system. It is known for reliability and stability. It is also less expensive than Windows.
• Linux Hosting: Linux hosting is the hosting of web services running on the Linux operating system.

Web Publishing:

The process of developing and maintaining web pages is known as web publishing. A website must be stored on a web server to be accessible all over the world. Many tools are available to publish web pages on the Internet.

Web hosting


Web hosting is a service that provides space on the Internet for storing web pages. Different organizations provide the facility of web hosting. Some websites also provide this facility free of cost. A website must be hosted on a Web server to be accessible from all over the world.

Web Hosting Services:

A good web site hosting company will provide at least the following services:
• Technical support
• FTP access to update web site
• A number of email accounts
• Online control panel for managing web site
• A database management system, such as MySQL or MS SQL.
• Specialized server applications such as ColdFusion, SQL Server, or PHP if required.

Types of Web Hosting:
Different types of web hOsting are as follows:

1. Shared Hosting:
Shared hosting is a type of hosting in which a web site is hosted on a server with many other web sites. However, the web site is configured as a separate web site on the server with its own domain name etc. The benefit of shared hosting is that it is cost effective.

2. Dedicated Servers:
A dedicated server hosts one or more web sites of only one user. It gives more control
over the web site. It can also ensures that other web sites do not impact on the web site.
However, the dedicated servers are much more expensive than shared hosting. It should only
be used if the website receives very heavy traffic or the user requires extra security etc. The user can log in to a dedicated server like a personal computer.

3. Virtual Dedicated Servers:
Virtual dedicated servers are a low-cost alternative to dedicated servers. The web host
can put many virtual servers on each machine to reduce costs. It appears to be a dedicated server when the user logs in to a virtual server.

4. Managed Hosting:
A managed hosting means that the user has a dedicated server and the web site hosting provider manages the server for the user. Typically, the hosting provider is responsible for the hardware, operating system and virus protection etc. However, the user has total control over the machine and the web site content.

Browser settings and Privacy Concerns about Cookies

Browser Setting for Cookies:

The browser can be set to accept cookies as follows:
• The user can set the browser to accept cookies automatically.
• It can be set to prompt the user to accept a cookie.
• It can be set to disable the use of cookies altogether. However, the user may not be able to use many of e-commerce web sites if cookies are disabled.


Privacy Concerns about Cookies:

Webmasters obtain information about users IP addresses, browser type, Last pages visited using cookies. It allows Web server to recognize a user who has already visited the website from the same computer. It allows the compilation of user profiles and large amounts of data related to the interests of the user.
Advertisers and webmasters are currently using cookies to develop detailed profiles of users and their browsing habits. Each click on a particular type of page in a website is added to the profile. The information is primarily used for website design and placement of banner advertisements. However, this information can be sold for other commercial purpose that creates a concern to personal privacy.

Types and Uses of Cookie


Types of Cookies:
Cookies can be temporarily and persistent.

• Temporary cookie: Temporary cookie is also called session cookie. It is stored temporarily in browser’s memory and is deleted when the session ends or the browser is closed.

• Permanent cookie: Permanent cookie is also called persistent cookie. It is stored permanently on computer’s hard drive. If it is deleted, it will be recreated when the user visits the website again.

Uses of Cookies:

Cookies are used for different purposes such as follows:
• Most websites use them for personalization of user preferences. For example,  a news website may allow the user to customize the page to display the news of his interests, The website stores user preference in cookies.
Some websites also use cookies to store user’s passwords. The users do not need to enter the password again and again.
• Some website use cookies to track visits of users and web pages visited by the users.
• Online shopping sites generally use session cookies to keep the track of items in a
user’s shopping cart.
• Some website may use cookies to target advertisement. These sites store a user’s
interests and browsing habits in the cookie and display related ads on the pages.

What is a Cookie


Cookie:
A cookie is used to maintain information about a user state. Cookies can be used to store user preferences and user information that can be used across pages in  the website. A cookie is also known as web cookie, browser cookie and HTTP cookie.
A cookie is stored as text strings on the computer. A Web server sends a cookie and the browser stores it. The browser returns the cookie to the server when the page is refrenced again. The most common use of a cookie is to store a user ID. A cookie may contain the string such as ID=96352398.

Example:
The website www.amazon.com uses cookies. The user fills a form with name and address to order a book. Amazon assigns an ID, stores user’s information with that ID in its database on the server. It also sends the ID to user’s browser as a cookie. The browser stores ID on the hard disk The browser sends the ID back to the server when the user visits Amazon again, The server customizes the web page according to the user ID.

Multimedia on Web


Tech Beats
Blogging Tips


Multimedia on Web

Multimedia is an application that uses text with grphics, animation, audio, video and virtual reality. The use of multimedia makes websites more attractive and interesting for the, people. The websites with multimedia contents take more time to download. Multimedia consists of the following:

1. Graphics
Graphic or graphical image is the digital form of chart, photOgrpah or drawing. Many websites use different colorful graphics, logos and charts to present information in an attractive way. The use of graphics increases the size of web page.
Two commonly used graphic formats are JPEG and GIF. JPEG format compresses graphics and reduces its size. Compression reduces the size but also decreases the quality. GIF format also compresses images. This format is suitable for the images with a few distinct colors such as line drawings, borders etc. A new format PNG is an improve form of GIF format. BMP, PCX and TIFF formats are heavy in size and are not used on the Web normally. Many websites use thumbnails of images. Thumbnail is a small version of a larger graphics.

2. Animation
Animation is the display of motion by displaying a series of still images in a sequence. It makes websites more attractive and lively. Scrolling text is an example of animation. Animation easily captures the attention of the user. Animated GIF. is a popular type of animation. it is actually a set of different images combined into a single GIF file.

3. Audio
Audio includes music, speech and other sounds. Audio is stored as individual sound files on the Web. Different formats of audio files are MP3, way, WMA, MPEG, RealAudio and QuickTime. Audio files are also compressed to reduce size.
Some applications on the Web use streaming audio. Streaming, is a process of transferring data in a continuous and even flow. With streaming audio, the user can listen to the music as it is downloading. MP3, QuickTime, Windows Media Format and RealAudio are accepted standards for transmitting streaming audio data on the Internet.

4. Video
Video is a set of full-motion images played at various speeds. Many videos also contain audio as well. Many websites provide live telecast of matches and shows. The users can download the video files from websites and watch them on their computers. Video ifies are found in different formats and are normally compressed to reduce their size. Moving Pictures Experts Group (MPEG) defines a popular video compression standard. The current standard is known as MPEG-4.
Streaming video allows the user to view video as it is downloading. Most commonly used streaming video standards are AVI (Audio Video Interleaved), QuickTime, Windows Media Format and RealVideo.

5. Virtual Reality.
Virtual reality is a technique used to simulate a real or imaginary environment that
appears in three-dimensional space. Virtual reality software create indefinite space and depth known as VR world. Jt can display a building with furniture and equipments. The user
can view the building on the computer by virtually moving the input device.
Virtual reality is commonly used in 3-D games. It is also used to create simulations of
scientific structures, products and buildings etc.

6. Plug-Ins
Plug-in is a program that extends the capabffity of a web browser. Web browsers can
display basic multimedia elements. Sometimes, they require plug-ins to display some files. Different plug-in programs are as follows:




What are web Directories

web Directories

Web directory is used to search general information on a broad topic or to explore
different areas of a broad topic. The directories are arranged by subject. They usually include
links to the top level of the website rather than to pages within the website. The user searches
by selecting a broad category and then narrows the search step by step. For example, a user
i start the search with category of Social Sciences. He can move to History, By Region,
Africa, Egypt, Ancient Egypt and then Pyramids. The results of different directories vary
widely as websites includes in each category are selected by the people instead of machines.
Some examples of web directories are as follows:

• www.ipl.org
• www.looksmart.com
• www.webbrain.com

what is Netiquette

Netiquette


Netiquette is an abbreviation of Internet etiquettes. it is the behavior expected from the users 
on the Internet. It includes different rules related to World Wide Web, 
email, message boards, chat rooms and instant messaging etc. 
Some netiquettes are as follows:

• Use short and concise messages with correct spelling and grammar.
• Use humorous word carefully as it may be misinterpreted.
• Use polite and sophisticated language.
• Do not send span mail to any one.
• Avoid the use of all capital letters.
• Use emoticons to expression emotions.
• Use abbreviations like AOA for Assalam-o-Alaikum
• Read frequently asked questions (FAQ) if available on a website or   newsgroup.
• Never think that the available material is perfect.
• Do not read private email of any person.

What is a Search Engine

Search Engines

Search Engines

Search engine is a website that provides the facility to find the required websites on a
particular topic. A user can search any topic on Internet using search engines. Internet
contains a lot of information. A large number of websites about different topics are available.
A user cannot remember all websites. He can search different websites using search engines.
Search engine contains the record of many websites. It searches the required websites and display them to the user. Search engines are very powerful tools for finding information.
Searching the Web

Different methods of searching the web are as follows:
1. Search using Boolean Logic
The Boolean operators are also used to search the required information from search
engines. All search engines do not provide the facility of using Boolean operators.
The Boolean operators are as follows:
AND operator is used to search on the basis of all words in the search string.such as “British AND Novels”. This search string will search for the websites ,that contain both words. The symbol + can also be used instead of AND.

OR operator is used to search on the basis of any word in the search string such as British OR Novels. This search string will search the websites that contain any of the two words. The symbol — can also be used instead of OR.

NOT operator is used to search on the basis of any word other than the search string
such as “New York NOT City”. This search string will search for the websites that contain the word “New York” but not “New York City”.

2. Search by Phrase:-
Keywords are used to search the required information from search engine. Keyword is a word or set of words that is related to the topic being searched. The keywrod is typed in double quotation if it consists of two or more words in the form of phrase. For example, the following phrases c be used to search information about Pakistani universities:
‘Pakistani thtiversities”
“Universities in Pakistan”

3. Search using Truncation
‘The truncation method is used to expand the seach to include a specified word root w different word endings. The first part of a keyword is given along with a symbol usually asterisk ‘ The following example will search Pakistan, Pakistani and Pákpattan etc

Types Of Websites


Tech Beats
Blogging Tips


Types of Websites
 Different types of websites are as follows:
1. Portal
Portal is a website that provides different types of Internet services such as:

  •  Search engine
  •  Sports and weather
  •  Reference tools
  •  Maps
  • Auctions
  •  News
  •  Free web publishing services
  • Stock quotes
  • Shopping malls
  •  Emails


Some portals contain information for general public and some provide information for specific group of people like laywers, doctors etc. A website for specific group of people with similar interests is called Web community. Some pupular portals are Yahoo, AltaVista, America Online, Excite, The Microsoft Network and Netscape. A type of portal is specially designed oft Web-enabled devices. it is known as wireless portal. Wireless portals provide all facilities to mobile users.
2. News
.
News website provides different types of news related to current affairs politics, sports, weather etc. They provide stories, articles and other material. Popular magazines and
newspapers provide the news on websites. Some examples of news websites are:
• www.geo.tv
• www.jang.com.pk

3. Informational
An informational website provides information with facts and figures. Governments provide information about different departments and policies for general public. Some examples of informational websites are as follows:
• www.pakistan.gov.pk
• www.most.gov.pk
• www.punjab.gov.pk

4. Business/Marketing
A business/marketing webiste provides material to promote its products and services.
Today, most of business companies have webistes. The customers can view the products and interact with the company. Many companies provide the facilities of online shopping using the Internet. Some examples of business/marketing websites are as follows:
www.dell.com
www.ibm.com

5. Educational
Educational webistes provide educational material related to teaching and learning. Many websites provide online training classes where people can learn different skills.
Colleges and universities provide information about classes, admissions etc. on websites.
Educational institutes also display results and course material on websites. Some examples of
educational websites are as follows:
• www.pu.edu.pk
• www.uaf.edu.pk

6. Entertainment
Entertainment websites provide material for recreation and enjoyment. These webistes provide music, videos, sports, games and chats etc. Many websites also provides online shows, live sports etc. Some examples of entertainment websites are as follows:
• www.lollywood.com
• www.pakistanmusic.com

7. Advocacy
Advocacy websites provide material to convince people of a cause, opinion or idea. Some websites represents the viewpoint of a particular comninity or group. Some intend to
create awareness in the people about a particular cause.

8. Personal
Personal websites contain material of an individual or a family. People publish
personal websites to share their views with others, to seek job or just for fun.

Roles In Website Development


Roles in WebSite Development Team

• Server Administrators: They take care of the technical issues and are responsible for .
running and maintaining the Web server. They also generate statisticalreports on the users of a website.

• HTML Coders: They write HTML code for website pa and troubleshoot the site.

• Designers: They are thegraphic artists responsible for the appearance of the website.

• Writers and Information Designers:Wnters prepare content for online display such as hypertext information and navigation paths. They work closely with designers to create page templates.

• Software Programmers: They write the programs for interactive website using different tools such as Common Gateway Interface (CGI) scripts, Java scripts. They also develop back end applications to interface with databases.

• Database Administrators: They maintain the databases and ensure data accessibility and security.

• Marketers: They generate contents and work to make the website more popular.

Monday, 2 July 2012

WEB BROWSER

Web Browser:-

A web browser is a software that is used to view web pages. It acts as an interface between user and the internet. It can understand HTML. It can display text and graphics.Browsers are also known as web clients or Universal clients. Some popular web browsers are:
  • Mozilla Firefox
  • Internet Explorer
  • Google Chrome
  • Opera
  • Safari

Functions of Web Browsers:-

  • Web Browsing:It is the most important Function of Web Browser. The user can browse different websites using web browser and see contents of website. The  web browsers provide different buttons to browse easily such as back,forward,stop and refresh etc.
  • Tabbed Browsing: Tabbed browsing allows the user to open multiple pages in the same browser window. Each webpage is loaded in separate tab.The user can move b/w different web pages more easily.
  • Search Box:The web browsers provide a built in search box. The user can designate The preferred default search engine for search.
  • Favorites:A web browser provides the facility to store favorite website address in a list. The user can go to any web page in the list by clicking on it. The user does not need to remember the addresses of favorite websites.
  • Mailing:A web browser also provides the facility to read or send e-mail. The user can also open up newsgroups etc.
  • Auto Complete: A web browser stores the addresses of all websites that have been visited by the user. Auto complete Feature displays complete addresses of a website as the user starts typing the address in address bar. 

Benefits Of Internet For Business Organizations

1. Marketing and Advertising:-
        A business organization can use the internet to market and advertise products all over the world. The user of popular websites is an effective way of introducing a product to the costumers.
2. Providing Customer Services:-
        A business organization can interact with customers using the internet. The businessman can discuss different issues about their products. He can also deal with their complaints and provide better and different services to them.
3. Online Trading:-
       Online trading is a process of conducting business using the internet. a business organization can do all trading activities electronically. The products can be displayed on the website where the costumers can buy these products. The costumers can also pay by credit card. It is an easier and quicker way of trading.
4. Wider Customers Base:-
        Organizations at distant places can interact with customers easily. Any person from any part of the world can be their customer. It provides a wider customers base for any business organization.
5. Competitive Advantage:-
         Companies using the internet in business are more competitive because they can offer their products and services to more customers well in time.

Benefits of Internet for Students

Tech Beats
Blogging Tips


1. Online Education:-
         Many colleges and universities in the world provide the facility to get education using internet. The students can earn Degrees and Diplomas from home using Internet.

2. Downloading Software:-
          The students can download many educational softwares from internet. These softwares can help The students to improve their knowledge.

3. Online Results:-
         Internet provides the facility to display results of students on websites. Many colleges and Universities provide online results. The students can view results from any part of the world.

4. Research:-
          Internet provides many facilities for research work. It contains detailed information on different topics. The research students can find the required information on internet. They can also interact with different researchers in the world to share Knowledge and get guidance.

5. Online Encyclopedia:-
           Online Encyclopedias are available on the internet. The students can find detailed Information on any topic in the World.
         
         

Disadvantages of internet

1. HACKING:-
          Hacking is one of the most important disadvantages of internet. The hackers access the data stored on computers across internet. They can use this data illegally or even destroy it.
2. IMMORALITY:-
          Internet contains large number of immoral websites. These websites contains such type of content which is against the moral values of our society. These websites are damaging the character of young people.
3. Security Problems:-
           Internet has created many security problems. Important data can be hacked on internet. Hackers also damage different websites and delete their contents. They also retrieve Critical data of different organizations and governments.
4. Viruses:-
            Internet is most important source of spreading computer viruses now a days. People spread virus using internet and Emails. Many websites also contain Different Viruses that are copied to the computers when the users visit the websites.
5. Wastage Of Time:-
           Many people use internet without any positive purpose. The young people waste their time in chatting. It affects their performance and makes them inefficient.
6. Cyber Crime:-
           Internet is a source of cyber-crimes. People use internet for negative activities. They Hacks credit card numbers of people and use them for shopping. Some people use internet to spread illegal and immoral material. Many Governments are introducing laws to stop cyber crimes. 

Advantages of Internet


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1. INFORMATION SEARCH:-
        Internet contains information on all types of topics . People can search information on any topic.
Search engines are used to search information on internet.
2. EMAIL:-
         Email is an inexpensive and fast way of communication. It is used to send messages, pictures
and files from one part of world to another.
3. E-COMMERCE:-
         E-COMMERCE means to carry out financial and business dealings using internet.
A person can deal with his costumers throughout the world.
4. ONLINE RESULTS:-
         Internet provides the facility to display results of students on websites. Many colleges and
Universities provide online results . The students can view results from any part of the world.
6. FAST COMMUNICATION:-
         Internet is a fast way of communication around the world.The people can communicate with
 one another in less time from any part of the world.
7. ENTERTAINMENT:-
         Internet provides a lot of entertainment to the people. The users can play online games, listen
 songs watch movies and live matches etc. Many websites provide entertainment material.
 People can also download entertainment stuff.
8. ONLINE EDUCATION:-
         The process of getting education through internet is called online education. Many websites
 Provide s tutorials and lectures on different subjects and topics. Some websites allow the user
 download these tutorials. It is the fast and cheaper way of educating a large number of people.
9. ADVERTISEMENT:-
         Many commercial products advertise their products on internet. This way of advertising is
 becoming very popular now a days. Millions of people are connected to the advertising business.

     

What is meant by ISP and SMTP

ISP

ISP stands for Internet Service Provider.ISP provides a link between the individual
user's computer and internet.The most common type of physical connection used for this service
is dial up modem that operates over normal telephone lines.
An ISP is a company, which provides you access to the internet and provides facilities 
of WWW,Email and FTP etc. Different ISPs in Pakistan are Comsat,Brain Net and WOL etc.

SMTP

SMTP stands for  Simple Mail Transfer Protocol. It is one of the most popular network 
service is electronic mail. It supports electronic mail on the internet. It is a system for sending 
messages to other computers users based on email addresses.
SMTP provides the facilities for email exchange between users on same or different computers.
it also supports:
  • sending a single message to one or more recipients .
  • sending messages that include text, voice,video or graphics.
  • sending messages to users outside the network.
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