Rising Nepal Secondary Boarding School

Final Examination 2073

Class: 8 F.M. 50

Time: 2 hrs. Subject: Computer P.M. 16

1. Write very short answers for the following questions: 10

  1. What is hardware?
  2. Name the type of number systems.
  3. Name the extension of MS Word.
  4. List any two name of multimedia software.
  5. What is the function of following shortcut keys in MS Word?

i) Ctrl + S ii) Ctrl + C iii) Ctrl + B iv) Ctrl + P

  1. Which language is used for creating webpages?
  2. Computer cannot run without OS. Why?
  3. What is a variable?
  4. What is an attribute?
  5. What is a file?

2. Answer the following questions in short: 28

  1. Convert following decimal numbers into binary numbers:

i) 55 ii) 90

  1. Add the following binary numbers:

i) 11112 ii) 110112 + 100012

  1. Write QBASIC expressions for the following algebraic expressions:

i) nr2 + kt ii) a2 + b2 iii) (F-32)2 iii) ½ mv2

  1. Write the effects of the following MS-DOS commands:

i) C:\> COPY RISING.TXT B:

ii) C:\> DIR *.COM

  1. Write any four commandments of computer ethics proposed by the computer ethics institute in Washington DC.
  2. What are the ill-effects of a computer virus?
  3. Define the following terms:

i) Assembler ii) Compiler

3. Write long answers for the following questions: 12

  1. What is artificial intelligence? Write down the special features of fifth generation computers.
  2. What is QBASIC? Write a program to find the cost of painting the four walls of a room. [Use: a= (2x(l + b)xh), t = cxa]

-O-

A. Very Short Questions 10×1=10

1. Who is known as father of computer?

2. Which network is known as network of network?

3. What type of computer is special purpose computer?

4. What is a program?

5. In which year was cyber law introduced in Nepal?

6. In which generation our digital computer lies?

7. How many bits are in a byte?

8. How many digits are there in binary number system?

9. Write the full forms of the following:

WWW UNIVAC LAN OS

B. Short Questions 7×4=28

10. List any four features of third generation computer.

11. Write any two differences between analog and digital computer.

12. What is utility software? Name any two utility softwares.

13. Write down any four provision of cyber Ethics.

14. List any four routes of transmission of computer virus.

15. What is a web browser? Name any three web browser.

16. a. Convert 2710 and 5710 into binary numbers.

b. Add following binary numbers: i) 1001+1101 ii) 1010+1110

C. Long Questions 2×6=12

17. What do you mean by generation of computer? Write 1/1features

of each generation of computer.

18. What are E-mail and internet? List any four services available in

the internet.