A GLIMPSE OF NETWORK BASICS:
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BEFORE
WE START DETAILED THEORY OF NETWORKING,HAVE YOU EVER HEARD THE WORD “NETWORK”
IN YOUR DAILY ROUTINES LIFE. SOMEWHERE OR THE OTHER YOU MUST HAVE HEARD IT AND
DEFINITELY TRIED TO FIND ITS MEANING AND USAGE.
IF WE
CONSIDER IN LAYMAN TERMS, NETWORKING HAS VARIOUS MEANINGS VARYING AS PER
SITUATION.
NETWORK
MEANS COMMUNICATION WITHIN A GROUP OR A BROADCASTING SYSTEM OF COMMUNICATION OR
AN INTERCONNECTED SYSTEM OF THINGS OR PEOPLE.
TODAY
WE HAVE NUMEROUS EXAMPLES OF NETWORK AROUND US:
NETWORK
OF ROADS
NETWORK
OF RAILROADS
NETWORK
OF CHANNELS
NETWORK
OF PEOPLE
NETWORK
OF BUSINESS ORGANIZATIONS
ELECTRONIIC
MEDIA NETWORK AND MOST IMPORTANT OF ALL,
COMPUTER NETWORK WHICH HELPS IN WIDE SPREADING ALL THE ABOVE NETWORKS.
YOU
MAY HAVE WATCHED THE SCI-FI MOVIES LIKE EAGLE EYE, MATRIX, TERMINATOR
SERIES WHICH REPRESENTS A VAST AND POWERFUL COMPUTER NETWORK ENSLAVING
HUMANS,MAKING ROBOTS OR SPYING THREATS FOR NATIONAL SECURITY THROUGH ELECTRONIC
NETWORKS.
THESE
FICTION MOVIES HAVE ALWAYS SHOWN THE BAD
IMPACT OF COMPUTER NETWORKS. BUT THE REALITY IS JUST OPPOSITE. COMPUTER
NETWORKS ARE THE EASIEST AND FLEXIBLE WAYS OF COMMUNICATING, INTERACTING,
EXCHANGING AND SHARING INFORMATION AMONG COMPUTERS ON DIFFERENT NETWORKS IN
DIFFERENT PARTS OF THE WORLD.
NOW YOU MUST BE CURIOUS TO KNOW WHAT A COMPUTER NETWORK
IS REALLY AND WHAT ARE ITS PRACTICAL APPLICATIONS IN OUR DAY TO DAY LIVES?
COMPUTER
NETWORK
A COMPUTER NETWORK IS A COMMUNICATION NETWORK THAT
ENABLES SHARING OF INFORMATION AND RESOURCES. NODES IN A NETWORK ARE CONNECTED
WITH EACH OTHER USING EITHER CABLES OR WIRELESS CONNECTIONS AND USE SYSTEM OF
DIGITAL RULES FOR DATA EXCHANGE.
DATA
IS TRANFERRED IN THE FORM OF PACKETS i.e. DATA IS NOT SENT AS A WHOLE, IT IS
BROKEN INTO PARTS CALLED PACKETS WHICH IS FORMATTED TO MAKE IT TRANSFERRABLE
AND THEN SENT TO TIS DESTINATION.
THE
BIGGEST NETWORK OF PUR GLOBE IS “THE INTERNET”. IT IS LIKE A SPIDERS WEB LINKED
EVERYWHERE AND CAN ACESS ANYTHING ANYTIME.
WHEN YOU
BROWSE INTERNET, YOUR COMPUTER BECOMES A PART OF THE INTERNET NETWORK.
THIS
WAS JUST A SIMPLE DESCRIPTION OF WHAT IS A NETWORK . IN THE NEXT PART WE ARE
GOING TO COVER DETAILED ASPECTS OF COMPUTER NETWORK.
