{"id":544,"date":"2020-01-23T14:42:41","date_gmt":"2020-01-23T14:42:41","guid":{"rendered":"https:\/\/bcisnotes.com\/thirdsemester\/?p=544"},"modified":"2020-09-09T05:05:51","modified_gmt":"2020-09-09T05:05:51","slug":"computer-architecture-and-microprocessor-spring-2017","status":"publish","type":"post","link":"https:\/\/bcisnotes.com\/thirdsemester\/question-bank\/computer-architecture-and-microprocessor-spring-2017\/","title":{"rendered":"Computer Architecture and Microprocessor || Spring 2017"},"content":{"rendered":"

Pokhara University- Computer Architecture and Microprocessor<\/strong><\/h2>\n

Level:\u00a0 Bachelor Semester \u2013 Spring \u00a0Year : 2017<\/strong>
\nProgramme: BCIS \u00a0\u00a0Full Marks: 100<\/strong><\/p>\n

Course: Computer Architecture and Microprocessor<\/strong><\/p>\n

\u00a0 Pass Marks: 45<\/strong>
\n\u00a0\u00a0Time\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0:\u00a0 3hrs.<\/strong><\/p>\n

Candidates are required to give their answers in their own words as far as practicable of Computer Architecture and Microprocessor. The figures in the margin indicate full marks.<\/p>\n

Section “A”<\/strong><\/p>\n

Very Short Answer Questions<\/strong><\/p>\n

Attempt all the questions. <\/strong>10\u00d72<\/strong><\/p>\n

1. Differentiate microprocessor, micro-controller and microcomputer.<\/p>\n

2. What is an opcode? What is the size of opcode, and an instruction of 8085 microprocessor?<\/p>\n

3. Explain the working of CMP instruction with examples.<\/p>\n

4. What is the specialty of Accumulator and HL pair over other register pairs?<\/p>\n

5. What is the function of ALE? Explain what System Bus is?<\/p>\n

6. Write down two merits and demerits of I\/O mapped and memory mapped I\/O.<\/p>\n

7. What do you understand by Interrupt Service Routine (ISR)?<\/p>\n

8. Differentiate between RISC and CISC architecture<\/p>\n

9. What do you understand by interrupts? Mention three conditions required to get 8085 interrupted by I\/O devices.<\/p>\n

10. How is synchronous and asynchronous serial transmission different?<\/p>\n

Section “B”<\/strong><\/p>\n

Descriptive Answer Questions<\/strong><\/p>\n

Attempt any six questions <\/strong>6\u00d710<\/strong>
\n11. With a neat diagram explain the architecture of 8085 needed for instruction execution.<\/p>\n

12. What do you mean by addressing mode? Explain several types of addressing modes available in 8085, with an example of each.<\/p>\n

13. How is instruction-cycle different to machine-cycle? List out the machine cycles of 8085 and explain them.<\/p>\n

14. Assume that before the execution of any instruction we have (A) = 65 H, (B) = B2 H, (H) = F9 H, (L) = 50 H, CY flag = 1, and the content of memory location F950 H is 20H. What is the value of register A and the value of different flags after the execution of each of the following?<\/p>\n

a)\u00a0\u00a0\u00a0\u00a0\u00a0 ADD L<\/p>\n

b)\u00a0\u00a0\u00a0\u00a0 ADC B<\/p>\n

c)\u00a0\u00a0\u00a0\u00a0\u00a0 SUI 13 H<\/p>\n

15. Explain the working principle of 8237 DMA controller.<\/p>\n

16. Write an 8085-assembly language program to perform addition of N 1-byte numbers. N value is provided in location X. From location X+1, the numbers are stored. Store the result in location Y and Y+1. Also display the result in the address field.<\/p>\n

17. Briefly explain ISA, PCI, AGP and USB interface standards.<\/p>\n

18.Section “C”<\/strong><\/p>\n

Case Analysis (20)<\/strong><\/p>\n

1.\u00a0\u00a0\u00a0\u00a0\u00a0 Let us say we have a hypothetical multiplier chip with four registers (R0, R1, R2 and R3). Address pins A1 and A0 are used to select registers. Considering the chip connected as I\/O mapped I\/O, explain in detail the basic I\/O writing a program segment.<\/p>\n

2.\u00a0\u00a0\u00a0\u00a0\u00a0 Write down a flowchart for interrupt driven data transfer.<\/p>\n

3.\u00a0\u00a0\u00a0\u00a0\u00a0 With a neat diagram explain the functional pin diagram of 8255.<\/p>\n

4.\u00a0\u00a0\u00a0\u00a0\u00a0 Explain the mode 0, mode 1 and mode 2 operations of 8255 ports.<\/p>\n

You may also like System Analysis and Design || Spring 2016 || Pokhara University<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Pokhara University- Computer Architecture and Microprocessor Level:\u00a0 Bachelor Semester \u2013 Spring \u00a0Year : 2017 Programme: BCIS \u00a0\u00a0Full Marks: 100 Course: Computer Architecture and Microprocessor \u00a0 […]<\/a><\/p>\n<\/div>","protected":false},"author":2,"featured_media":578,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"yoast_head":"\nComputer Architecture and Microprocessor || Spring 2017<\/title>\n<meta name=\"description\" content=\"Subject: Computer Architecture and Microprocessor, Level:\u00a0 Bachelor, Semester \u2013 Spring, Year: 2017, Programme: BCIS, University: Pokhara University.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bcisnotes.com\/thirdsemester\/question-bank\/computer-architecture-and-microprocessor-spring-2017\/\" \/>\n<meta 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