Tribhuwan University

Institute of Science and Technology

2078

Bachelor Level / First Year / First Semester / Science

Bachelors in Information Technology (BIT101)

(Introduction to Information Technology)

Full Marks: 60

Pass Marks: 24

Time: 3 Hours

Candidates are required to give their answers in their own words as for as practicable.

The figures in the margin indicate full marks.

Section A

Long Answers Questions

Attempt any TWO questions.
[2*10=20]
1.
What are the main functions of Digital computer? Draw and explain the block diagram of Digital computer. [5+5]
2.
What is Network Device? Describe the features of repeater, hub, switch, bridge, router, and gateway in brief.[10]
3.
What is operating system? Explain Function of Operating system in detail.[10]
Section B

Short Answers Questions

Attempt any Eight questions.
[8*5=40]
4.
What are the key features of Fifth Generation of computer? Explain [5]
5.
What is Computer Bus? Explain the functions of data bus, address bus and control bus. [5]
6.
What is scheduling? Explain Non Pre.-emptive scheduling and Pre-emptive scheduling. [5]
7.
Convert 3748.658 decimal to Binay, Octal and Hexadecimal. [5]
8.
Define a packet. Explain the working of the packet switching technique. [5]
9.
Define: Data model, Schema, and Instance. [5]
10.
What do you understand by the term Computer security? Explain functions of Firewall. [5]
11.
Explain the impacts of IT on Individuals in our Everyday Life in brief. [5]
12.
Write short notes on: a. Modulation and Demodulation Write short notes on: b. Cryptography [2.5+2.5]