Code: DE10                                                                    Subject: COMPUTER ENGINEERING

Time: 3 Hours                                                                                                     Max. Marks: 100

NOTE: There are 9 Questions in all.

· Question 1 is compulsory and carries 20 marks. Answer to Q. 1. must be written in the space provided for it in the answer book supplied and nowhere else.

· Out of the remaining EIGHT Questions answer any FIVE Questions. Each question carries 16 marks.

· Any required data not explicitly given, may be suitably assumed and stated.

Q.1       Choose the correct or best alternative in the following:                                         (2x10)

      a.     The register which keep track of the address of the instruction to be executed next is

(A)  Index Register                                     (B)  Memory Address Register     

(C)  Program Counter               (D)  Instruction Register

2. Which is a secondary memory device?

(A) RAM                                                   (B) CPU               

(C) Floppy Disk                                         (D) Mouse

c. RISC stands for

(A)  Reduced Instruction Set Computer     

(B)  Rapid Instruction Set Computer          

(C)  Reliable Intelligent Super Computer

(D)  Ruby Integrated Silicon Chip

4. Mnemonics are used in

(A)  High Level Language.                          (B)  Low Level Language.             

      (C)  Machine Language.                             (D)  Assembly Language.

5. The addressing mode of 8085 instruction LDA 2500H

(A)  Immediate.                                          (B)  Direct.

(C)  Register.                                              (D)  Implied.

6. Which of the following is not a type of monitor?

(A)  Cathode Ray Tube                              (B)  flatbed

(C)  Liquid Crystal Display                         (D)  plasma display

7. When a subroutine is called, the address of the instruction following the CALL instruction is stored  in/on the

(A)  Stack Pointer.                                     (B)  Accumulator.  

(C)  Program Counter.                                (D)  Stack.

8. If  the address sent by the CPU matches with the address present in the cache then it is said the following has occurred

(A)  Miss.                                                   (B)  Shot.  

            (C)  Match.                                                (D)  Hit.

9. In a magnetic disk data is recorded in a set of concentric tracks which are subdivided into

(A)  sectors.                                               (B)  groups.           

(C)  periods.                                               (D)  zones.

10. Intel 8086 is a

(A)  8-bit microprocessor.                          (B)  32-bit microprocessor.           

(C)  16-bit microprocessor.                        (D)  64-bit microprocessor.

Answer any FIVE Questions out of EIGHT Questions.

Each question carries 16 marks.

Q.2     a.   What are the various registers provided in Intel 8086? Discuss their functions.                     (8)

             b.   Explain steps involved in the execution of an instruction for a pipelined processor.               (8)

  Q.3     a.   Explain the different types of instruction formats in 8085.                                     (6)

             b.   What operations are performed by an ALU?                                                      (4)

c.   What is the function of Cache Memory?                                                             (6)

Q.4     a    Write short notes on

(i) Pentium                                           (ii) Pentium Pro

                   (iii) Pentium II                                      (iv) Pentium III                                        (8)

             b.   What is an Operating System? Explain with example Single-User and Multi-User Operating System.                                                                      (8)

  Q.5     a.   Explain Asynchronous data transfer scheme for an A/D Converter.                     (6)

             b.   What are High-Level Languages? Give the areas of applications of C,  JAVA, SQL, LISP.                                                                       (10)

  Q.6     a.   What are the different types of printers? What is the difference between Impact type and non Impact type printers?                                              (8)

             b.   What is PCI? Discuss its merits over other bus architecture?                               (8)

  Q.7     a.   Explain with a neat schematic diagram how a character is displayed on the CRT screen.                  (8)

             b.   Describe the construction and working principle of hard disks.                            (8)

  Q.8     a.   Explain the applications of computers in different areas.                                       (8)

             b.   What is a Debugger?  Explain the different tools used to debug programs.           (8)

Q.9     a.   What is the function of a port? What is an input port and an output port. What are programmable and non programmable ports?                           (8)

             b.   What are DVD-ROM, DVD-R and DVD-RAM? In what way they differ from CD-ROM, CD-R and CD-RAM?                                                 (8)