Beginning with networks, it was an academic curiosity in the year 1980.These
networks were used by universities and large business in the year 1988.In 1996,computer networks,especially the internet,
had become a daily reality for millions of people.The networking picture has changed radically towards wireless networks.
Computer network is a collection of autonomous computers interconnected by a single
technology. Computer networks are a boon to business applications.Considering an example of computer network in business applications,
a company’s information system is consisting of one/more databases and some number of employees who need to access them
remotely. The data that are stored on powerful computers which are called the servers and employees have simple machines,
called clients with which they can access data. The client and server networks are connected by a network.
The two important networks architecture are the OSI and TCP/IP reference
model in computer network.The Open System Interconnection (OSI) model deals with the system that is open for communication
with other system. It has seven layers.The TCP/IP reference model - it’s the ability to connect multiple networks in
a seamless way. It has 4 layers.Moving towards network security which is looming on the horizon as a potentially
massive problem. Following below is the algorithm which secures the data sent from the sender to the receiver from the intruders.
RSA algorithm:
RSA algorithm is one of the public key algorithms. A new kind of cryptosystem, one
in which the encryption key( i.e.) the message sent by the sender on which a security key is applied so that the message
becomes a encrypted message and decryption keys (i.e.) a security key is applied by the receiver to get the exact message
sent by the sender and thus protecting the message from the intruders .In this algorithm ,the decryption key could not
be feasibly derived from encryption .
For example: SUZANNE is the plain text which has to be sent to the receiver by protecting from
the intruders. The receiver will be able to receive the text exactly the same sent by the sender in a secured manner. Mail for the application of RSA algoritm
Adavantage of RSA : More
secure which is more usefull in business applications so that the information regarding the company can be sent in a
secured manner.
Now Telecommunication is fast becoming a cost saving strategy thanks to the continuing recession that is
financially crippling businesses across the globe. Many organisations are planning to go the'virtual way'as far as feasible.
The idea of extending 'work from home'option may reduce the overhead costs.web casts, teleconferencing and video conferencing
provide excellent plateforms for holding meetings.If your business supports,it is a good idea to save cost by downsizing office
space rather than downsizing staff.(A healthy cash flow is vital for sucess of a business. Get payment intime without losing
a clint.Tough times do not come after prior intimations.)
