Internet & its Uses
The internet has intruded globally into everything than we could imagine. There are hardly people who do not rely on the internet for their daily life. Internet has emerged in such a way that we happen to use it to run our daily life in some way. The uses of Internet are endless; a few of them are as follows:
Education: Internet is a valuable source for a lot of information. Data and information related all fields are updated in the internet. Students can spend a few minutes over the internet to read their relevant study materials. Many students use internet for intense research on their projects.
Communication: With internet, communication has become better and easier. One can call and talk to someone over the internet. Video calls are an interesting option with communication through internet. Mailing is one another form of communication, which is widely used in daily corporate life.
Current Updates: Daily updates and current happenings are made available in the internet instantly. Internet is considered the real time hub for all updates about politics, sports, entertainment, science, business and many other fields.
Corporate Base: The corporate world relies on internet for file sharing, data transfer, internal communication and external communication; and many other purposes. In simple words, internet forms the base of the corporate today.
E-Commerce: Other than using internet for business purposes, a business itself can be started and accomplished through the internet. E-Commerce has lot of advantages like reaching the customers easily, giving a lot of information about the business, clearing customer queries instantly and making the payment also possible over the internet.
Terminology of Internet
World Wide Web (WWW): The World Wide Web (“WWW” or simply the “web”) is a collection of electronic documents (called web pages) that are linked together like a spider web. These documents are stored on computers called servers located around the world.
Web Server: A Web Server is a computer that stores web pages. It is responsible for accepting request(s) from users and serves them with web pages.Two important web server programs are: IIS (Internet Information server) and Apache, etc. Web servers are connected to the Internet 24 hours a day, seven days a week.
Hyperlink: It is an element in an electronic document that links to another place in the same document or to an entirely different document or other resource. Hyperlinks usually appear as underlined text and in a different color, but they may also appear as graphics, such as buttons to click. Hyperlinks may be used
to link another place in the same page, or another page, to play an audio or video file, to download a file, to set up a message to an e-mail address, and to link to other Internet resources.
HTML (Hypertext Markup Language): It is a language that consists of certain key words called ‘Tags’, used for writing the documents on the web.
Web Page: A web page (such as the one you are looking at now) is an electronic document written in a computer language called HTML (Hypertext Markup Language).Web pages can contain text, graphics, video, animation, and sound, as well as interactive features, such as data entry forms. Each page has a unique address known as a URL (Uniform Resource Locator) that identifies its location on the server. Web pages usually contain hyperlinks to other web pages.
Website: A website (often shortened to just site) is one or more web pages, belonging to a particular company, institute, government or an individual. The first page is called the home page, which acts like an index, indicating the content on the site. 248 :: Data Entry Operations By default the home page is named as index.htm. From the home page, you can click hyperlinks to access other web pages.
URL (Uniform Resource Locator): Every page on the web has a unique address, called Uniform Resource Locator, URL. A URL indicates where the web page is stored on the Internet. A sample
IP (Internet Protocol) Address: Computers do not understand letters or symbols that humans use to communicate effectively. Computers understand numbers-specifically, 1s and 0s. Thus every host (a computer linked to the Internet) on the Internet has a unique host number. This number is called the Internet Protocol address, or IP address. The IP address is a unique address, generally written in the format xxx.xxx.xxx.xxx, where xxx represents a 3 digit number that varies between 0 and 255. For Example: 220.127.116.11
DNS (Domain Name System): Every host (computer linked to Internet) has a unique host number called IP address. You can connect to any host through IP address only, but it is difficult to remember the 4-digit number of hosts. To resolve this, domain name is the only solution. Domain name, a unique name of the individual host computer on the Internet. Every computer on the Internet now have both a domain name and an IP address. To connect to any host through domain name requires some mechanism that will convert the domain name IP address. DNS, Domain Name System is the standard for resolving names to addresses. It is used mostly to translate between domain names and IP addresses.