Digital Computer Fundamental (April – 2014) [IDOL - Old Course | Question Paper]

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B.Sc.IT: Semester – I

[Digital Computer Fundamental]

Question Paper (April – 2014) [Old Course]

Time: 3 Hours
Total Marks: 100

N.B.:    (1) Questions No. 1 is Compulsory.
             (2) Attempt any four questions from remaining.

Q.1 Attempt the following Question: (20 Marks)
(A) Explain Flag Register in 8085.
(B) Explain PCI Arbitration.
(C) Explain RAID with its various level.

Q.2 Attempt the following Question: (20 Marks)
(A) Explain Data Bus, Address Bus and Control Bus in case of 8085 microprocessor?
(B) Write an Assembly Language Program top add two 8 bit numbers stored at memory location 2000 H and 2001 H.
(C) Write a short note on:
(i) Stack Memory (ii) Subroutine.

Q.3 Attempt the following Question: (20 Marks)
(A) What do you mean by externally initiated operators with respect to a Microprocessor?
(B) Explain different Addressing Modes in 8085 Microprocessor. Give two examples of each Addressing Mode.
(C) Explain structure and function of Modern Day Computer System.

Q.4 Attempt the following Question: (20 Marks)
(A) Write a short note on interrupt.
(B) Explain the structure of Cache Memory.
(C) What is instruction Pipelining?

Q.5 Attempt the following Question: (20 Marks)
(A) Explain Major Functions of an I/O Module.
(B) Explain the programmed I/O Module and interrupt driven I/O Module.
(C) With the help of a Block Diagram explain DMA.

Q.6 Attempt the following Question: (20 Marks)
(A) What is an Operating System?
(B) Explain following terms in Operating System:
(i) Multiprogramming (ii) Time Sharing.
(C) Write a short note on Real Time Operating Systems.

Q.7 Attempt the following Question: (20 Marks)
(A) Write a Assembly Language Program to find smallest number in given block stored from memory location 2000 H to 2004 H.
(B) Explain following instructions in 8085:
(i) 2050
(ii) PUSH B
(iii) INR M.

(C) Explain Programming Model of 8085 Microprocessor.

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