BSc CSIT (TU) Science Microprocessor (BSc CSIT, CSC162) Question Paper 2078
This is the official BSc CSIT (TU) (Science stream) Microprocessor (BSc CSIT, CSC162) question paper for 2078, as set in the regular annual examination. It carries 60 full marks and a time allowance of 180 minutes, across 12 questions. On Kekkei you can attempt this Microprocessor (BSc CSIT, CSC162) past paper online with a timer, get instant AI feedback and step-by-step solutions, and track the topics where you lose marks — completely free. Whether you are revising for your BSc CSIT (TU) Microprocessor (BSc CSIT, CSC162) exam or solving previous years' question papers, this 2078 paper is a great way to practise under real exam conditions.
Section A: Long Answer Questions
Attempt any TWO questions.
Explain the instruction set of the 8085/8086 microprocessor. Classify the instructions into data transfer, arithmetic, logical, branch and machine control groups with examples.
What is the instruction cycle? Explain fetch, decode and execute cycles. Describe the timing diagram for a memory read operation.
Write an assembly language program to find the largest number in an array of n numbers. Explain the logic.
Section B: Short Answer Questions
Attempt any EIGHT questions.
What is the difference between a macro and a procedure?
Explain the use of the ASSUME directive.
What is meant by tristate logic?
What is the function of the queue in 8086?
List the data transfer instructions of 8086.
What is the role of the BHE signal?
Differentiate between MOV and XCHG instructions.
What is a wait state?
Explain based indexed addressing mode.