DipIETE – ET (OLD SCHEME)

 

Code: DE10                                                                    Subject: COMPUTER ENGINEERING

Flowchart: Alternate Process: DECEMBER 2009Time: 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 the best alternative in the following:                                  (210)

       

a.         PC-XT (Personal Computer Extended Technology) contains which one of the following processor?

 

      (A)  Intel 80286                                         (B)  Intel 8088            

      (C)  Intel 80186                                         (D)  Intel 80386

 

b.         Which one of the following addressing is not used in power PC Processors?

 

(A) Register indirect addressing            

(B) Based in Direct addressing with displacement               

(C) Direct memory addressing                               

(D) Based indirect addressing with index

 

c.         MBR stands for

 

(A)  Memory Base Register.                       (B)  Memory Byte Register.

(C)  Memory Bit Register.                    (D)  Memory Buffer Register.

 

d.         MEMR is a

 

(A)  Interrupt Signal                                    (B)  Memory Read Signal        

      (C)  Memory read write signal                    (D)  None of the above.

 

e.         8272A is a

 

(A) Hard disk controller                              (B)  Winchester disk controller

            (C)  Floppy disk controller                    (D)  CRT controller

 

f.          MICR stands for

 

(A)  Magnetic Ink Character Reader                      

(B)  Magnetic Ink Character Recognition   

            (C)  Mechanical Ink Character Reader       

            (D)  Mechanical Ink Character Recognition

 

 

 

g.         Which of the following is not a high level language.

 

(A)  Cobol                                           (B)  Algol  

            (C)  Unix.                                             (D)  Fortran

 

h.         Which one of the following is not a valid DOS command

 

(A)  REN                                             (B)  DEL   

            (C)  CAT                                             (D)  VER

 

i.          PCI has been developed by

 

(A)  IBM.                                             (B)  Intel   

            (C)  Motorola.                                      (D)  None of the above.

 

j.          Laser printer are

 

            (A)  Character printers                          (B)   Page printers

            (C)  Line printers                                  (D)   Impact printers

 

 

Answer any FIVE Questions out of EIGHT Questions.

Each question carries 16 marks.

 

 

  Q.2     a.   Draw the schematic block diagram of a CPU showing its essential components. Discuss the function of each components.                                        (6)

 

             b.   Discuss Flynn’s classification of Computers with example.                                   (6)

 

             c.   What is the impact of Computers on our society?                                                (4)

            

  Q.3     a.   What is the purpose of CPU registers? Describe any six registers which are usually provided in a microprocessor?                                  (2+6)

 

             b.   What are instructions? What are the various types of instruction format? Discuss them with suitable examples.                                            (2+6)

            

Q.4    a     What are the main differences in Intel 8086 and 8088? What are the

                  advantages of 8088 over 8086?  Discuss the areas of application of 8088.                                                                                                                             (3+2+1)

            

             b.   What do you mean by addressing modes? Discuss the following addressing modes with suitable examples.

 

                        (i)    Direct addressing

(ii)   Register addressing

(iii)  Register Indirect addressing

(iv)  Immediate addressing                                                                         (2+8)

 

  Q.5     a.   Briefly explain Static and Dynamic RAMs. Discuss their advantages, disadvantages and area of application.                                                           (4+2+2)

 

             b.   Discuss the various error checking techniques which are used for magnetic disk memory.                (4)

 

             c.   Write short note on cache memory.                                                                    (4)

 

  Q.6     a.   Give the construction of the following:-

 

                   (i)   Mechanical Key Switches

                   (ii)  Capacitive Key Switches

                   (iii) Hall Effect Key Switches                                                                              (6)

 

              b.  Explain the differences between ink-jet printers and laser printers.                       (4)

 

              c.   Discuss RS – 232C and RS – 422A standards for serial data transfer                (6)

 

  Q.7     a.   Explain non-CRT displays, their types along with their working principle.             (8)

 

             b.   Briefly explain the application of computers in Medical field and in the

                   field of banking.                                                                                                 (8)

 

  Q.8     a.   Write short note on booting.                                                                               (4)

 

             b.   Briefly explain the following commands in UNIX with an example.                                     

                   (i)    cat                                               (ii)  grep                                                              

                   (iii)   ls                                                 (iv)  rm                                                  (8)

 

             c.   Discuss the working principle of a laser printer.                                                   (4)

       

  Q.9     a.   Compare the merits and demerits of low level languages and High level languages.              (8)

 

             b.   Name the various types of bus architectures used in a Computer system and briefly explain any three of them.                                                                                                                 (8)