This Paper has 39 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.l which is compulsory and any two of the rest from this part.)
|
| Marks |
| 1. | (a) | "Systems approach is based on a scientific method of problem solving. Problems, opportunities and solutions are viewed through various steps of systems approach." Briefly discuss the steps of systems approach. | 4each | (0) |
| | (b) | "Even though LAN and WAN provide networking of computers in an organisation, it cannot continue computerised operations without various important secondary storage devices." Give details of various secondary storage devices. | | (0) |
| | (c) | "Disadvantages of traditional file oriented approach of information processing may motivate an organisation to move to the database approach." Discuss briefly these disadvantages. | | (0) |
| | (d) | "No programme can be prepared without keeping in mind the general aims of writing a programme." What are these general aims ? | | (0) |
| | (e) | What are the various modes of committing computer crimes ? | | (0) |
| 2. | (a) | Discuss in detail the recent trends in information system. | 5 | (0) |
| | (b) | Write a detailed note on major modules of a database system | 5 | (0) |
| | (c) | What are 'programming languages' ? Discuss briefly the third generation programming languages. | 5 | (0) |
| 3. | Distinguish between the following : | 3each | |
| | (i) | 'Low level language' and 'high level language'. | | (0) |
| | (ii) | 'Primary storage' and 'secondary storage'. | | (0) |
| | (iii) | 'Flow chart' and 'algorithm'. | | (0) |
| | (iv) | 'Hardware' and 'software'. | | (0) |
| | (v) | 'Report programme generator language' and 'query | | (0) |
| 4. | (a) | Explain the following : | 1each | |
| | | (i) | ROM | | (0) |
| | | (ii) | Modem | | (0) |
| | | (iii) | Bit | | (0) |
| | | (iv) | Interpreter | | (0) |
| | | (v) | Entropy | | (0) |
| | | (vi) | Key Board | | (0) |
| | | (vii) | Virus. | | (0) |
| | (b) | Convert : | 2each | |
| | | (i) | (511)10 to binary number, | | (0) |
| | | (ii) | (11001)2 to decimal number, | | (0) |
| | | (iii) | (222)8 to decimal number, | | (0) |
| | | (iv) | (148)10 to hexadecimal number. | | (0) |
| PART — B |
(Answer Question No.5 which is compulsory and any two of the rest from this part.)
|
| 5. | Differentiate between the following : | 4each | |
| | (i) | 'Measures of central tendency' and 'measures of dispersion'. | | (0) |
| | (ii) | 'Primary data' and 'secondary data', | | (0) |
| | (iii) | 'Census' and 'sample', | | (0) |
| | (iv) | 'Line diagram' and 'simple bar diagram'. | | (0) |
| | (v) | 'Correlation' and 'regression'. | | (0) |
| 6. | State, with reasons, whether the following statements are correct or incorrect (Attempt any five) : | 3each | |
| | (i) | Statistics is perfect in nature and it has no limitations at all. | | (0) |
| | (ii) | Mean is affected by extreme observations. | | (0) |
| | (iii) | Quartile deviation takes into account the top 50 per cent of the observations. | | (0) |
| | (iv) | Coefficient of correlation is a statistical tool which measures the degree of relationship between two or more variables. | | (0) |
| | (v) | Linear programming problem involving more than two variables can be easily solved by graphical method. | | (0) |
| | (vi) | Arithmetic mean and weighted mean are the same. | | (0) |
| 7. | (a) | Find the most likely price in Mumbai corresponding to the price of Rs.70 at Kolkata from the following data :
Average price at Kolkata (x) 65 Average price at Mumbai (y) 67 Standard deviation of Kolkata price 2.5
Standard deviation of Mumbai price 3.5 r = + 0.8 between the price in the two cities. | 7 | (0) |
| | (b) | A group of eight students get the following percentage of marks in Statistics and Accountancy : Roll NO. of
Students
1
2
3
4
5
6
7
8 | Marks in
Statistics(%)
50
60
65
70
75
40
70
80 | Marks in
Accountancy (%)
80
71
60
75
90
82
70
50 | | Compute the rank correlation coefficient. |
| 8 | (0) |
| 8. | (a) | Find the dual of the following linear programming problem : | Max. Z = 5x1 + 16x2 | | Subject to the constraints | 2x1 + 7x2 < 110
x1 + 5x2 < 80
4x1 + 3x2 > 90
x1 , x2 > 0. |
| 5 | (0) |
| | (b) | Solve graphically the following linear programming problem : | Z = 40x + 80y | | Subject to the constraints | 2x + 3y <48
x < 15
y < 10
y < 10
x > 0
y > 0. |
| 10 | (0) |
