Code: DC03                                                                 Subject: COMPUTER FUNDAMENTALS

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 A. 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. A Pixel is _____________________.

(A)  a computer program that draws picture

(B)  a picture stored in secondary memory

(C)   the smallest resolvable part of a picture

(D)  None of these

b. Which number system is usually followed in a typical 32-bit computer?

(A) 2                                                  (B)  10

(C)  16                                                (D)  32          

             c.   Which technology is used in optical disks?

(A)  Mechanical                                  (B)  Electrical

(C)   Electro Magnetic                         (D)  Laser

             d.   Which of the following storage devices can store maximum amount of data?

(A)  Floppy Disk                                (B)  Hard Disk

(C)  Compact Disk                             (D)  Magneto Optic Disk

             e.   EPROM can be used for                                      

(A) Erasing the contents of ROM       

(B)  Reconstructing the contents of ROM

(C)  Erasing and reconstructing the contents of ROM        

(D)  Duplicating ROM

             f.    Memory unit is one part of

(A) Input device                                

(B)  Control unit

(C)  Output device                              

(D)  Central Processing Unit

             g.   MS-WORD is a

(A) system software                           (B)  high level language

(C)  spread sheet application                (D)  word processing package

             h.   The grammar dialog box can be involved by choosing grammar from _______ menu.

(A) insert                                            (B)  file

(C)  tools                                             (D)  view

             i.    A template stores

(A)   styles, macros

(B)  Auto Text entires, Customized word command Settings

(C)  graphics, text                               

(D)  All of the above

             j.    To return the remainder after a number is divided by a divisor in EXCEL we use the function

                   (A)  ROUND( )                                  (B)  FACT( )

(C)  MOD( )                                       (D)  DIV( )

Answer any FIVE Questions out of EIGHT Questions.

Each question carries 16 marks.

Q.2     a.   Explain briefly the salient features of the various generation of computers.            (8)

             b.   Distinguish between minicomputer, microcomputer and mainframe computer.                      (8)

Q.3     a.   Draw a block diagram of a computer. Explain the function of each of the blocks.                (8)

             b.   What are registers? Name and explain the use of any four of them.                      (8)

Q.4     a.   Distinguish between the following:

(i) Cache and virtual memory

(ii) Static and dynamic RAM                                                                          (8)

b.   (i)   What is the difference between internal and external commands in DOS?                      (4)

                   (ii)   Write short note on Real Time operating system.                                          (4)

Q.5     a.   What is DVD-ROM? What are the differences between CD-ROM and DVD-ROM?                   (8)

     b.   What is a sector and track in hard disk?                                                             (4)

             c.   Briefly describe the function of serial access secondary storage device.                (4)

 Q.6      a.    What are the different types of key switches used in keyboards? Explain their working with the help of neat diagram.                                              (8)

             b.   Briefly explain the following with respect to monitors

                   (i)   Resolution                                     (ii)   Refresh rate

                   (iii) Pixel                                              (iv)  Interlaced scan                                (8)

Q.7     a.   Briefly explain the working of a laser printer.                                                       (8)

b.    Differentiate between the following:

       (i)   Mechanical and optical mouse.

       (ii)  OCR and OMR.                                                                                         (8)

Q.8     a.   Explain the term Hardware, Software and Firmware, specifying the relationship between them? Name atleast two items of all categories.                   (8)

             b.   What do you understand by memory management and the role of operating system in doing so?                                                                 (8)

Q.9           Write short notes on any FOUR.        

(i) Shell programming

(ii) Process management

(iii) Documentation

(iv) Five mathematical functions in MS-EXCEL

(v) DOS                                                                                                   (16)