Download PTU B.Tech 2021 Jan IT 3rd Sem 76394 Computer Architecture Question Paper

Download PTU (Punjab Technical University) B.Tech (Bachelor of Technology) / BE (Bachelor of Engineering) 2021 January IT 3rd Sem 76394 Computer Architecture Previous Question Paper

Roll No.
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech. (IT) (2018 Batch) (Sem.?3)
COMPUTER ARCHITECTURE
Subject Code : BTES-302-18
M.Code : 76394
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Answer briefly :
1.
What are addressing mode used for?
2.
How a number is represented using floating point representations?
3.
Explain pros and cons of RISC architecture.
4.
What are different layers of memory organization?
5.
What is role of interrupts?
6.
What is DMA controller?
7.
What is the difference between hardware and software interrupts?
8.
What are the disadvantages of multi-level cache memory?
9.
Differentiate between write back and write through policies.
10. Why Optimal Page Replacement Algorithm is practically impossible to implement?
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SECTION-B
11. Explain in detail differences between hardwired and micro-programmed control unit
design.
12. Create the circuit diagram of full adder using two half adders.
13. Explain parallel processing. What are the challenges in achieving parallel processing?
14. Differentiate between primary and secondary memory with examples.
15. Write short note on I/O interfaces.
SECTION-C
16. Explain various stages in instruction pipelining. Discuss in detail methods to handle
control hazards.
17. Explain cache mapping techniques wiz, Direct, associative and Set-Associative mapping.
18. Explain addressing modes in 8085 microprocessor with examples:
a. Immediate addressing mode
b. Register addressing mode
c. Direct addressing mode
d. Register indirect addressing mode
e. Implied addressing mode
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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