Friday 15 April 2016

Internet


1.         Introduction

(a)        Internet is a worldwide collection of computers, networks and gateways . It consists of millions of computers connected to each other through telephone lines, fiber optics, satellite links or other communication lines. Each of these computers contains information that can be accessed by anybody with the right kind of equipment.

(b)        Once connected to the Net, you become a part of a community of millions who use computers to communicate with one another and share ideas and information.

(c)        Computers use protocols to communicate with one another. At the heart of the Internet are high-speed data Communications lines between major host computers, consisting of thousands of commercial, government, educational, and other computer systems that route data and messages.

(d)       Internet offers a range of benefits to users, such as E-Mail, Downloads,                                       Information, Products, Services and much more.

2.         Browsers

(a)    A browser is a client application used to access the information on the World Wide Web. The browser interprets the markup of files in HTML, formats them into Web Pages and displays them to the user. It also makes the connection necessary to follow Hypertext Links. These links bring you information from Web servers and other types of resources, which may be located anywhere on the Internet.

(b)    Browsers are either Graphical or Text oriented. The Graphical browsers display images, as well as text, and offer Hyperlinks to multimedia resources, including sound and video files.

(c)    The Text oriented browsers like the Lynx enables you to follow web hypertext links but do not display non-text web resources.


(d)    The best browsers have additional features that save time and make it easier to navigate and use the resources of the web. Look for one that is Forms capable and has some timesaving features. The most popular browsers available today are the Netscape Navigator and Microsoft Internet Explorer

No comments:

Post a Comment