Define Web Server, Web Browser, WWW, ISP

Q. Write notes on the following:
WWW, ISP, WEB PAGE, WEB SITE, WEB SERVER, WEB BROWSER

WWW

WWW stands for World Wide Web. It is also called web. It is the collection of all connected web documents stored on different web servers. These documents contain information in the form of text, pictures, audio and video clips. WWW has many advantages:
· finding a job
· searching information
· advertisement for business
· weather forecast
· entertainment
· education

Difference between Internet and World wide web:

The main difference between internet and World Wide web is that World Wide Web is only a service provided by internet. It provides access to web documents. While internet provides many other services also like FTP, TELNET and chatting etc.

ISP (Internet Service Provider) OR IAP (Internet Access Provider

ISP stands for internet service provider. It is a company that provides internet connections to users. For example WOL net, PAK net, CYBER net etc. are ISPs. To connect to internet, users have to get internet connection from an ISP. These days, internet scratch cards are also available. ISP will provide you a user name, password. It will also provide a telephone number to connect to internet.
There are many ISPs these days in every big city of the country. A good ISP has the following features:
· Low rate
· Fast browsing
· Fast downloading and uploading
· Good customer support

WEB PAGE

A document created by HTML and found on web is a web page. A web page contains information in the form of text, pictures, audio and video clips. These web pages are stored on special computers called WEB SERVERS.

WEB SITE

A collection of related and interlinked web pages is called a web site. A web site may have many pages. Each web page will provide different information. For example, a web site for a College can have a Home page, Faculty page, Courses page, Games page and contact page. Home page is the main page of any web site. We can see all other pages by links provided in home page. Each web site has a unique address. For example web address of Baha-ud-din Zakaria University is www.bzu.edu.pk.

WEB SERVER

Web documents are stored on special and powerful computers called WEB SERVERS. Web servers are permanently connected to internet. When we type address of a web site in a browser (internet explorer), then web server fulfills this request. They provide requested information in the form of web page.

WEB BROWSER

A browser is software that is used to view web pages on internet. Many web browsers are available. But Mozilla Firefox, Google Chrome and Internet explorer are the most popular. We type address of any web site in address bar of browser and press ENTER key. Then first page called HOME PAGE of web site is displayed in browser window.

Explain Main Difference Between System Software and Application Software

Topic: Explain Main Difference Between System Software and Application Software Differentiate between system software and application software Before , explaining the main differences between application software and system software, let us know the definitions of Application software and System software with examples. What is System Software: System software is a set of programs to control all components of computer and to manage overall operations of computer system. Differences between System software and application software System software is used as a base to install and run all application software. Examples of system software include: Operating Systems, like Microsoft Windows, DOS, Unix and Linux Device Drivers like Device driver software of a Printer (found on CD normally provided with the printer) Utility Programs like AVAST anti virus, Disk Scanners and File Viewers etc. What is Applicat...

Definition and History of ECommerce

What do you mean by E-Commerce? Electronic Commerce (e-Commerce) is a general concept covering any form of business transaction or information exchange executed using information and communication technologies (ICTs). e-Commerce takes place between companies, between companies and their customers, or between companies and public administrations. Electronic Commerce includes electronic trading of goods, services and electronic material. BRIEF HISTORY OF E-COMMERCE + E-commerce started in early 1970’s with invention of electronic fund transfer(EFT). + Only used by large organizations, financial institutions and a few small business at that time. + After invention of EDI (Electronic Data Interchange) from financial institutions to manufacturers retailers, services and so on. + Many other e-commerce applications started from stock trading to travel reservation system. + With commercialization of internet in early 1990’s. The term electronic commerce was used. Interne...

Services Of Internet

SERVICES PROVIDED BY INTERNET Important services provided by internet are as the following: 1. THE WORLD WIDE WEB This is also called web or www or 3w. The collection of all web pages in all web sites on Internet is called www. These web pages provide us information in the form of text, pictures, audio and video formats etc. 2. E-MAIL E-mail stands for electronic mail. It is the most popular, cheap, easy and fastest mailing service. We can send and receive messages on internet with in seconds or minutes. 3. EMAIL DISCUSSION GROUPS These are used to discuss different topics with other people by email. 4. NEWSGROUPS Newsgroups are discussion groups on internet. They are used for free exchange of information. A user sends a message to the news group site. Other users read this message from this site and reply. Newsgroups are provided by special computers called news servers. 5. ECOMMERCE It stands for Electronic Commerce. E-commerce means to carry out business dealings by internet...

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