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UNIVERSITY OF THE PUNJABFirst Semester 2014

Examination: B.S. 4 Years Programme

PAPER: Introduction to Computing TIME ALLOWED: 2hrs. & 30 mins.

Course Code: IT-101 / IT-11394 MAX. MARKS: 50

Attempt this Paper on Separate Answer Sheet Provided.

PART-II (Short Question)

QUESTION # 2 [20 marks]

Write short answers to all of the following question:

1. What is the difference between LAN and WAN?

2. If a computer system processes 5485 jobs in 13 hours, what willbe throughput of the system.

3.

Determine the final value of the following expression by showing each step of working.OOR (1 AND ( 1 OR O))

4. What is database? How it differ from file?

5. What are cyber ethics? Explain with example.

6. Write any two application of Microsoft excel that how it provides ease in business record

management?

7. What is Slide Transition and Hyperlink in Power Point?

8. List the function of Control Unit in CPU.

9. List any two method/algorithms used for information security.

10.What is cache memory and why it is used?

PART-III (Subjective)

QUESTION # 3 [10 marks]

a) What is virtual memory ? Why virtual memory is used? Explain the concepts which are

used in realization? [5]

b) What is Hard Disk? Draw labeled diagram of hard disk structure. [5]

QUESTION # 4 [10 marks]

a) What are networking topologies? Explain BUS, STAR, RING and MESH topology.

Roll No.