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A

Section A: Long Answer Questions

Attempt any TWO questions.

3 questions·10 marks each
1long10 marks

Define information technology. Explain the application of IT in different fields such as education, business, health and entertainment.

it-applications
2long10 marks

Explain the different number systems used in computers. Convert (256.5)10 into binary and hexadecimal.

data-representation
3long10 marks

What is computer security? Explain the various threats to computer security and the measures to protect a computer system.

security
B

Section B: Short Answer Questions

Attempt any EIGHT questions.

9 questions·5 marks each
4short5 marks

List and explain the characteristics of a computer.

computer-basics
5short5 marks

Differentiate between bit, byte and word.

data-representation
6short5 marks

What is firmware? Differentiate it from software.

software
7short5 marks

Explain the working of a printer and its types.

io-devices
8short5 marks

Differentiate between SRAM and DRAM.

memory
9short5 marks

Explain the client-server and peer-to-peer network models.

networks
10short5 marks

What is e-commerce? List its types.

internet
11short5 marks

Explain the components of multimedia.

multimedia
12short5 marks

Write short notes on antivirus software.

security