PU BCA Microprocessor and Computer Architecture Question paper 2nd Semester

Pokhara University BCA 2nd Semester Microprocessor and Computer Architecture Question paper 2023 and 2024 Collection

*** Question of 2024 Exam ***

What is microprocessor ? Different between Microprocessor and Micro controller.
Draw the internal architecture of 8085 Microprocessor and Explain each part.
Decode the timing diagram for the LDA 2000H, Instruction using 8085 MP, Including the fetch and execution cycles.
What are the different addressing modes in 8085.
Write a program to perform 16 bit addition on the following data 3020H and 5040H. Store result H and L register.
Draw the functional block diagram of 8086 and describe in brief.
Describe Register organization and data path in computer.
What are the major difference between hardwired and micro-programmed control unit.
Draw the block diagram of microprogram sequencer for a control unit. Explain its operations.
Draw the flow chat of Booth’s multiplication algorithm and multiply (-6) x (12) using booth’s Multiplication algorithm.
Explain about cache mapping techniques
Describe the roles of registers, cache memory, Main Memory and secondary storage in the memory hierarchy
Explain the DMA operation with Block diagram.
What do you mean by Multicore Architecture? Write about Flynn’s Classification of Computer.
Write Short Notes on
- Signed and unsigned Notaion
- 8086 vs 8085
- 8085 Flags.

*** Important for Exam ***

Define Microprocessor. Explain Microprocessor based system.
What is flag. Discuss about 8085 associated flags. Along with suitable example show how these flags are affected by arithmetic and logical group of instructions.
If the content of memory location 2052H is greater then or equal to 64H, display 0FH else display FFH.
Draw the internal Architecture of 8085 microprocessor and explain each part.
Explain the different types of addressing modes available in 8086 microprocessor with example.
What is Register organization? Explain the basic components used in processor organization.
What is address sequencing? Explain the selection of address for control memory with it block diagram.
Why is micro-programmed control unit more flexible as compared to hardwired control unit? Explain the sequencing technique used in control memory.
What is control memory? How preprogrammed control unit works
Perform Multiplication (-10)*(2) using booth algorithm.
Draw the memory hierarchy. Explain cache memory with its types.
Explain the block diagram of DMA controller and explain how DMA is used to transfer from peripheral.
Write short notes.
- Signed multiplication algorithm
- Programmed I/O
- Design Principles for Modern system