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 LOCAL AREA NETWORK (LAN):(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
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