Data communication and computer networking

,Grading Policy
Sessional I 10 Marks

Sessional II 15 Marks

Quizzes 10 Marks

Assignments 15 Marks

Terminal Exam 50 Marks

Total 100 Marks

, Recommended Books
 Course material about most of the topics can be found in the following text
books.




Data and Computer Computer Networks Data Communications and Networking,
Communications, Andrew S. Behrouz A. Forouzan,
William Stallings, Tanenbaum, Fourth Edition
Eighth Edition Fourth Edition

,Course Material Access
 All the lecture slides and helping material, and course
information would be available in following yahoo or
gmail group.
* Group home page:
http://groups.google.com/group/datacomms


• Group email address
•

,Chapter 1 – Data Communications, Data
Networks, and the Internet



Instructor: Dr. Mustafa Shakir

,Contemporary Data Comms
 trends
 traffic growth at a high & steady rate
 development of new services
 advances in technology
 significant change in requirements
 emergence of high-speed LANs
 corporate WAN needs
 digital electronics

,A Communications Model

, Communications Tasks
Transmission system utilization Addressing

Interfacing Routing

Signal generation Recovery

Synchronization Message formatting

Exchange management Security

Error detection and correction Network management

Flow control