Computer Organization is one of the prominent subjects for CSE students. Bus Architecture and Instruction formats of a computer is playing a vital role for different flavors of Operating Systems. The expert was emphasized on “how the bus structure was implemented, uses of bus structure, importance of address bus, data bus, control bus”. He also extended the lecture on instruction formats of a computer. He explained about “single instruction format, two instruction format and three instruction formats”. Using these instruction formats, how operations on data will be performed? How architecture of computer can be implemented? What is Polish notation and Reverse Polish Notation? How these notations are useful during the evaluation of expressions in a specific language? The expert interacted with students and guide them to pave the path towards ultimate goal of B.Tech CSE programme.