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 interval for the time of submission of a process to the time of completion is

(A)  Waiting time.                                (B)  Turn around time.

(C)   Seek time.                                   (D)  Response time.

b. The index hole in a soft-sectored floppy disk is used to locate

(A)  First sector.                                  (B)  Last sector.

(C)  First track.                                   (D)  Last track.

c. Which of the following is not associated with hard disk

(A) FAT.                                            (B)  System Area.

(C) Root Directory.                             (D)  Index hole.

             d.   Branch instructions are used to

(A)  Manipulate numeric data.             (B)  Logical data.

(C)  Transfer control.                          (D)  Manage data. 

             e.   Which of the following is not a data segment register of Intel 486?

(A)  DS                                              (B)  CS

(C)  ES                                               (D)  FS

             f.     The register which stores the address of the instruction is

(A)  Memory Buffer Register.              (B)  Memory Address Register.

                     (C)  Instruction register.                      (D)  Program counter.

             g.   Bi-directional data flow takes place between

(A) Input device and CPU.                (B)  Output device and CPU.

(C)  Storage unit and CPU.                  (D)  CPU and keyboard.

             h.   Mnemonics are associated with

(A)  High Level Language.                  (B)  Object Oriented Language.

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

             i.    The errors that are not detectable by the compiler are

(A)   Logical errors.                             (B)  Semantic errors.

(C)  Syntax errors.                               (D)  Internal errors.

             j.    Which is the latest write-once optical storage media?

(A)  WORM Disk.                              (B)  CD-ROM Disk.

(C)  Digital Page.                                 (D)  Magneto-optical Disk.

Answer any FIVE Questions out of EIGHT Questions.

Each question carries 16 marks.

Q.2     a.   How are modern computers classified? Explain the features of the different types.               (6)

             b.   Write the addressing modes of the following instructions:                                        

                   (i)   MOV B, C                                   (ii)  CPI 02

                   (iii) JMP 800                                       (iv)  LDA 2000H                                    (4)

             c.   Discuss the Flinn’s classification of computers with examples.                              (6)

Q.3     a.   Explain the three different types of instructions based on the word length with the help of examples.                                                                        (9)

             b.   Name and explain the two different operating modes of 8086 microprocessor.                    (3)

             c.   Explain the function of the following registers:

                   (i)   Index Register                               (ii)  Stack Pointer

                   (iii) Program Counter                           (iv) Memory Address Register                (4)

Q.4     a.   Explain the memory organization of 8086.                                                           (8)

b.   Compare the features of DEC’s Alpha microprocessor and MIPS microprocessor.            (8)

Q.5     a.   Define the terms:

                   (i)  Access time                                    (ii)  Seek time

                   (iii) Latency time (6)

     b.   Give the full form of DVD. Briefly explain about DVD-ROM, DVD-R and DVD-RAM.                (1+9)

  Q.6           Write short notes on:

(i)  Magnetic-Ink Character Reader (MICR)

                   (ii)  Touch Screen

                   (iii) Computer Output on Microfilm or Microfiche

                   (iv) RS-232C standard                                                                                  (4x4)

Q.7     a.   Explain the Interrupt driven data transfer scheme.                                                (8)

b.   What is an assembler? Explain the terms self or resident assembler, cross assembler, one-pass assembler and two pass assembler.                      (8)

Q.8     a.   What is debugger?  Name and explain the tools used to debug programs.            (6)

             b.   Write a short note on SUN’s Solaris operating system.                                       (4)

c.   Explain the role of computers in database management.                                       (6)

Q.9     a.   Mention the drawbacks of Industry standard architecture bus. Explain the features of EISA bus.                                                                (2+6)

             b.  Explain the features of Accelerated Graphic Port (Bus) and IEEE-1284.              (8)