INTERNET CONCEPTS
Computer Network: Computer Network is a collection of computers connected together with some communication medium like cables, infrared or bluetooth etc
Advantages of Computer Network:
Sharing Resources
Sharing of Data
Reduce cost of Transfer of data
Improve Speed of transfer of data
Different types of Computer Networks:
LAN: stands for Local Area Network.
MAN: stands for Metropolitan Area Network
WAN: stands for Wide Area Network
Internet
Internet is the network of Computer networks world wide.
WebSite
It is an information resource of a particular topic. A website consists of Webpages each consist some part or chapter of main topic.
Web Browser
Software used to see the Websites. It provides an address bar in which we have to enter Web address of the website we wish to see.
Ex: Internet Explorer, Mozilla Firefox, Google Chrome etc
Web Address
The unique identification of a Web site in the Internet. Also known as URL (Uniform Resource Locator).
Example of Web Address: http://www.servername.domain
http stands for Hyper Text Transfer Protocol which the system to be followed by the computer in the network while transferring data.
www refers to World Wide Web that means all the webpages in the internet world wide.
Servername is the name of computer contains the website
Domain is the category of Server in the Internet Eg: .com, .gov., .edu. , .org etc
WebPage
An Electronic page consisting of information in the form of text, images, videos, animations etc.
Hyperlinks
An item in the webpage that is maintaining link with another webpage.
Search Engine
A website that is used to search for webaddresses that contains searching words. Search Engine provides a Search Box in which Search words to be typed. The Search Engine lists the links of web addresses in which the search words are found. You can refine your search to images, videos that match your search words
Some of Search Engines in Internet: Google, Bing, Yahoo etc
Applications of Internet:
Video Chatting: Skype
Social Networking: facebook
Online Shopping: snapdeal, flipkart, amazon
Online Classified: Olx, Quikr
Online Banking: Netbanking service provided by Banks to their customers
College Seat Counselling: Eamcet, Polycet Counselling
Travelling Tickets: Train, Bus, Flight Ticketing
Job/Scholarship/Passport Applications: Various online applications
Utlity Bill Payments: Current, Mobile Phone
Email Service
Message passing service in the internet
Email Address
Anyone who wishes to use email service should have an email address provided by any service provider. By providing few details, we can register into any free email service and get an email address. The password for your email account is the key to your inbox and should not be disclosed to any one.
Example of Email Address: email_ID@serviceprovider.domain