A guest lecture programme was organized by the Department of Computer Engineering, Electrical and Electronics Engineering and Bio Medical Engineering of Paavai Polytechnic College for the second and third year students on 21.09.2022. The Chief Guest , Mrs. K.Poonkodi, Professor , Department of Biomedical Engineering of Paavai College of Engineering. She had delivered an elaborate lecture on “Computer Networking”. In her lecture, she explained about the concept of Topology, ISI and OSI model, Node and its applications.