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 :
| 8 | (0) | |||||||||

8. | (a) | Find the dual of the following linear programming problem :
| 5 | (0) | ||||||||

(b) | Solve graphically the following linear programming problem :
| 10 | (0) |