NCERT Computer: Chapter 6 – Fundamentals of Internet and Java Programming Part 3
(Iii) Telnet (Remote Computing)
Telnet or remote computing is telecommunication utility software, which uses available telecommunication facility and allows you to become a user on a remote computer.
The TELNET works in a very step by step procedure.
Most of the ISP provides facility to TELNET into your own account from another city and check your e-mail while you are travelling or away on business.
The following steps are required for a TELNET session:
Start up the TELNET program;
Give the TELNET program an address to connect to
Make a note of what the "escape character" is; l Log in to the remote computer;
Set the terminal emulation;
Play around on the remote computer; and
(Iv) World Wide WEB (WWW)
WWW is the acronym for the World Wide Web. It is also commonly known as 'The Web'.
The WWW is a hypertext based information retrieval tool.
All the information on Internet are presented to the user as a document or more popularly known as Web Page. All these Web Pages are linked to each other or even to section within a Web Page and these links are known as Hyper Links.
The tool used to view these Web Pages on Internet is known as Internet browser or simply browser.
Just like every house, every office, every location has an address every page on the Internet has a unique address. The address is used to get the web page for user from Internet.
Just as the address of a house or office is known as its postal address, the address on the Internet is known as URL (Uniform Resource Locator).
A typical Internet address or URL would look like:
The URL locates a particular web page, among all the computes connected to the Internet. The URL contains the components that specify the protocol, server, and pathname of an item. Let us examine the URL given above (http://www.nois.org/computers/inbtenet/url.htm).
The first component, the protocol, defines the manner for interpreting computer information. Many Internet pages use HTTP (Hyper Text Transfer Protocol). Other common Internet protocols that one might come across are FTP (File Transfer Protocol)
The last component (/computers/internet/), defines the path within the server where the requests item (url.htm) will be found. Most of the web pages will have .htm or .html as their secondary or extension name.
How to Get Connected to Internet
There are various type of connectivity to get connected to Internet. They all can be broadly classified as: