Computer science class 8

 

Time: 1: 30 hrs                                                                                                   

Class: 8                                                                                                                                  FM: 40

Subject: Computer science                                                                                                PM: 16

Group A

A.Very short answer question.  [6x1=6]

1.      What is the name of first electro mechanical computer.

2.      Name the component of second generation computer.

3.      Is Ms- DOS a  GUI Operating System?

4.      Write any two popular computer virus?

5.      What is the name of  first web page of websites.

6.      Write any two example of operating System?

7.      Write a technical term of following statement. [0.5x4=2]

a. Input device used to enter letter,symbol, special character.

b. Software that is designed to take care and maintain acomputer.

c. The repeatedly  working capability of computer .

d. Space in the memory  which has a unique name in qbasic.

 

8.      Write fullform. [0.5x4=2]

i. HTML       ii. GUI             iii.LAN                        iv.IBM

Group B

B. Short answer question. (6x3=18)

9.      what is Constant write its type and explain any one

10.  Prepare a flowchart to calculate area of classroom on the basis of given length and breadth.

11.  Perform binary calculation.

i. 1110-111                        ii. 1101X101

12.  Convert the following as instructed.  (123)

13.  What is web browser? Write the function of following HTML tags . 

a.<IMG>            b.<HR>

14.  What is antivirus programs ? What  are the symptoms of computer virus.

Groups C

C. Long answer question (3x4=12)

15.  Write down the work and syntax of Input and Prints Statement.

16.  Write a Qbasic program to calculate the area of circle.

17.  What is algorithm? Write an algorithm to calculate the simple interest.

 

 

**** Good Luck ****