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Handouts data comm Data Communication CS CCS -Data Communication VU Table of Contents Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lect

Data Communication CS CCS -Data Communication VU Table of Contents Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No Lecture No ? Copyright Virtual University of Pakistan CCS -Data Communication VU A LECTURE Course Outline The course will consist of ?? lectures ?? A - assignments ?? exams midterm and ?nal ??GMDB Grading Criteria ??One Midterm ??Final Exam ??Assignments ??GMDB A Textbook ??Data Communications and Networking ? th Edition by A Behrouz A Forouzan ??Data and Computer Communication ? th Edition by William Stallings ? Copyright Virtual University of Pakistan CCS -Data Communication VU INTRODUCTION TO DATA COMMUNICATION DEFINITION OF DATA COMMUNICATION ??Data Communication is the exchange of Information from one entity to the other using a Transmission Medium ? DEFINITION OF DATA COMMUNICATION Cont ? d As you can clearly notice the de ?nition of Data Communication although Simple leaves many questions unanswered Exchange Information Entities Transmission Medium We will try to answer all these Questions in this Course History of Data Communication Data communications history represents a blend of histories including The history of the telecommunications industry The history of data communications and The history of the Internet Telegraph Samuel Morse Modern telecommunication industry began in with the invention of the telegraph by Samuel Morse This led to building a telecommunications infrastructure of poles and wires as well as to the development of communication hardware and protocols Telephone Alexander Graham Bell Invention of telephone by Alexander Graham Bell in and the development of wireless communication technology by Guglielmo Marconi in the s set the stage for today ? s communication industry By ? s By s telephone and telegraph companies had developed a network of communication facilities throughout the industrialized world ? S Although development of databases languages operating systems and hardware was strong from s to s large-scale data communication systems did not emerge until the s This was stimulated by major developments Large-scale integration of circuits reduced cost and size of terminals and communication equipment ? Copyright Virtual University of Pakistan CCS -Data Communication VU New software systems that facilitated the development of data communication networks Competition among providers of transmission facilities reduced the cost of data circuits TODAY ? S EVERGHANGING BUSY WORLD o Today ? s fast world demands better secure and most of all FAST ways of communication o Gone are the days when you had to wait a couple of weeks to get a letter from USA o Why wait ONE week when you can get the information you require in just a