Introduction to Information Technology 2078

Section A

Long Answer Questions.

Attempt any two questions.        (2 x 10 = 20)

1. What are the main functions of Digital computer? Draw and explain the block diagram of Digital computer.

2. what is Network Device? Describe the features of repeater, hub, switch, bridge, router, and gateway in brief.

3. What is operating system? Explain Function of Operating system in detail.

Section B

Short Answer Questions.

Attempt any eight questions.        (8 x 5 = 40)

4. What are the key features of Fifth Generation of computer? Explain.

5. What is Computer Bus? Explain the functions of data bus, address bus and control bus.

6. What is scheduling? Explain Non pre-emptive scheduling and Pre-emptive scheduling?

7. Convert 3748.658 decimal to Binary, Octal and Hexadecimal.

8. Define packet. Explain the working of the packet switching technique.

9. Define: Data model, Schema and Instance.

10. What do you understand by the term Computer security? Explain functions of Firewall.

11. Explain the Impacts of IT on Individuals in our Everyday Life in brief.

12. Write short notes on:

        a. Modulation and Demodulation

        b. Cryptography