This Paper has 25 answerable questions with 0 answered.
Roll No………………  
Time allowed : 3 hours  Maximum marks : 100 
Total number of questions : 8  Total number of printed pages : 2 
PART —A (Answer Question No.1 which is compulsory and any two of the rest from this part.)

Marks 
1.  Write notes on the following :  5each  
 (i)  Black box concept   (0) 
 (ii)  Factors affecting information needs   (0) 
 (iii)  Benefits of computers   (0) 
 (iv)  Methods of detecting computer crimes.   (0) 
2.  (a)  Define ‘management information system’ (MIS) and mention its important characteristics.  8  (0) 
 (b)  What is DOS ? Discuss any three DOS commands. What is the difference between a file and a directory ?  7  (0) 
3.  (a)  Discuss the major functions of ‘operating system’.  8  (0) 
 (b)  What are the functions of ‘data base management system’ (DBMS) ?  7  (0) 
4.  (a)  What are the general aims of writing programs ?  5  (0) 
 (b)  Describe top down programming approach.  5  (0) 
 (c)  Write a note on ‘visual programming’.  5  (0) 
PART —B (Answer Question No.5 which is compulsory and any two of the rest from this part.)

5.  (a)  Write notes on any three of the following :  4each  
  (i)  Significance of quantitative techniques   (0) 
  (ii)  Law of statistical regularity   (0) 
  (iii)  Census and sample investigation   (0) 
  (iv)  Objectives of measurement of seasonal variations   (0) 
  (v)  Harmonic mean.   (0) 
 (b)  The following is the distribution of weekly wages of workers: Wages (Rs.) No. of Workers  50 – 100 25  100 – 150 42  150 – 200 63  200 – 250 50  250 – 300 20 
Determine — (i) Median (Md) and quartiles (Q1 and Q3); and (ii) Percentage of workers getting weekly wages between Rs.125 and Rs.260.   8  (0) 
6.  (a)  Distinguish between the following :  2each  
  (i)  ‘Continuous series’ and ‘discrete series’.   (0) 
  (ii)  ‘Exclusive class intervals’ and ‘inclusive class ntervals’.   (0) 
  (iii)  ‘More than’ and ‘less than’ frequency tables.   (0) 
 (b)  Weights of 10 students in kilograms are given below. Find the mean, standard deviation and its coefficient 41, 44, 45, 49, 50, 53, 55, 55, 58, 60  9  (0) 
7.  (a)  Describe the merits and demerits of sampling.  5  (0) 
 (b)  From some given data, the consumer price index based on 5 groups was calculated at 205. The percentage increase in prices over base period is given below : Rent and taxes Fuel and light Clothing Miscellaneous  60 120 210 130 
Calculate the percentage increase in the food group given that the weights of the different groups were as follows Food Rent and taxes Fuel and light Clothing Miscellaneous  60 16 12 8 4   10  (0) 
8.  (a)  Explain any one application of linear programming model.  5  (0) 
 (b)  Solve graphically the following linear programming problem: Minimize Z =  4x_{1} + 3x_{2}  Subject to  2x_{1} + 3x _{2 } ≥ 6 2x_{1} + 3x _{2 } ≥ 12 x_{1} + x_{2} ≥ 5 x_{1,} x_{2} ≥ 0   10  (0) 