Roll No.
Total No. of Pages : 02
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Total No. of Questions : 16
BCA (2014 to 2018) (Sem.-4)
MICROPROCESSORS & MICROCONTROLLERS
Subject Code : BSBC-402
M.Code : 10067
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Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains SIX questions carrying TEN marks each and students have to attempt any FOUR questions.
SECTION-A
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Answer briefly :
- Give two applications of microprocessors.
- What is instruction cycle?
- Explain branch instruction.
- What is Accumulator?
- What is arithmetic co-processor?
- What are priority interrupts? Which interrupt has the highest priority?
- What is the difference between synchronous and asynchronous communication?
- What is the need of clock generator?
- What is the purpose of a Programmable Interrupt Controller?
- What is the purpose of Intel 8284?
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SECTION-B
- Explain 8085 with pin diagram.
- Discuss different addressing modes of 8085 with examples.
- Explain the data transfer and logical instructions of 8085.
- What is RISC processor? How is it different from CISC processor?
- What is DMA? Draw its circuit diagram. Explain various operations of Intel 8257 DMA controller.
- Explain the architecture of programmable interrupt controller 8259.
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NOTE : Disclosure of identity by writing mobile number or making passing request on any page of Answer sheet will lead to UMC against the Student.
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This download link is referred from the post: PTU BCA Last 10 Years 2011-2021 Previous Question Papers