Fundamentals of Computer Networks

Fundamentals of Computer Networks
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Fundamentals of Computer Networks

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Publisher: IK International
ISBN: 9789380578507
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PREFACE
The subject matter of networks comprises the study of the different aspects of communication. The study of networks is very interesting and is important not only from the subject point, but also from its practical and real-life applications. Right from the ages, human beings tried to communicate with each other for their mutual needs and support. To begin with, they used to communicate with each other or with a group of people through mime, then through pictures and nally through a language. They used to employ messengers to communicate with people located at far away places. If necessary, they used a chain of messengers stationed at different intermediate places to communicate with people located at far off places. Later, the postal department monopolized the communication eld. Then computers entered the eld of communication and brought in many revolutionary changes in this eld. Nowadays people depend more and more on computer networks for their communication needs and for a fast and safe transmission of their data information. In no time a research scholar of a university in one country can know what work is going on in the related eld in other countries and have access to the latest developments in that eld. Results of a particular examination are being put on the net and the interested persons can browse the net and can know their results in no time. A doctor who wants to perform an operation on his her patient can consult, online, the specialist counterpart anywhere in the globe and get the bene t of the expertise of the later. Digital communications is the fast growing technology at present. It is interesting to see, today, that the general public, besides a number of individuals with academic, professional backgrounds use networks for their varied needs. At present, it is possible for the two people to see each other through web cameras and communicate with each other. The most important characteristic feature of today s communication system is the Mobile User . A large number of persons use mobile computers, cell phones. This subject is being offered as a core subject for B.Tech, M.C.A., M.Sc. Computer Science and other related courses. There are a number of good books that contain full, authentic and complete information on this subject. It is the experience of most of the teachers that students fail to adopt them in their preparation in view of their vastness. The main intention in bringing this book is to make available what the student speci cally wants. If necessary, they can consult standard books for more information. Any suggestions for improvement of this book are welcome. I. Chandra Mohan
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Fundamentals of Computer Networks
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Publisher IK International