What is the Internet?• A Network of Network is internet. Network

means Communication between two more computers using cables or other media devices like valves, satellite, other electronic devices. Around the world.

• The largest network of networks in the world.• Uses TCP/IP protocols and packet switching .• Runs on any communications substrate.

Network

• Communication between the people or Nations or Institutions using any devices like Mobile, Radio, TV, Newspaper etc. is called network.

• A network of networks, joining many government, university and private computers together and providing an infrastructure for the use of E-mail, bulletin boards, file archives, hypertext documents, databases and other computational resources

• The vast collection of computer networks which form & act as a single huge network for transport of data and messages across distances which can be anywhere from the same office to anywhere in the world.

NetworkNetwork

Network: Communication between two or

more then two computers

Types of NetworkTypes of Network

LAN – LOCAL AREA NETWORK

MAN - METROPOLITAN AREA NETWORK

WAN - WIDE AREA NETWORK

LOCAL AREA NETWORK (LAN):LOCAL AREA NETWORK (LAN):

LAN

Server Workstation or Node or Client

Communication Between computers within limited distance.

Communication Media: Cable

Metropolitan Area Network (MAN):

MAN

Communication Between computers within a city.

Communication Media: Telephone Lines or Radio waves

Jayanagar

Basavangudi Rajajinagar

M G Road

Yalahanka

Wide Area Network (WAN) :

New York

Mumbai

Bangalore Landon

Australia

WAN

Communication Between computers across the world. Communication Media: Satellite

Server

Client

Applications of NetworkApplications of Network

Printer Sharing

Files Sharing

Printer

Satellite

INTERNETCommunication between millions of computers through out the world.

INTERNETINTERNET

Applications of internetApplications of internet News www.timesofindia.com

Education www.bangaloreeducation.com

eBanking www.icicibank.com

eCommerce www.baazee.com

eGovernment kar.nic.in

Jobs timesjobs.com

eMail eGreeting Chatting Gaming Online

Terms to be Known:Terms to be Known:

Surfing or Browsing

Website adderss or URL(Uniform Resource Locator)

Browser

Internet Explorer or Netscape Navigator etc …

Toolbar in browser

Saving web page & pictures

Hyperlink

Server

Search engine

www.google.com

www.yahoo.com

www.askjeeves.com

www.altavista.com

Browser

Hyperlink & HypertextHomepage

Website address or URL ToolbarSearch Engine

This notes can be downloaded from Internet, website id is

www.maruthivishnuvardhan.blogspot.com