Let's Log In Computer Science Book 7 Revised (2078).indd

Vedanta Let’s Log in Computer Science _ Book 7

5) Convert the following numbers as instructed. [4×1=4]

a) (202) = (?) b) (1011) = (?)
10 2 2 10

c) (115) = (?) d) (122) = (?)
10 8 8 10

Group ‘B’ – [12.5 marks]

‘ANALYTICAL’

6) Write a technical term for the following: [4×1=4]

a) A digital computer which uses microprocessor.

b) A language translator that converts assembly language codes into machine
language.

c) The motion of the object in the slide.

d) Which provides internet services to end-users.

7) Match the following. [4×0.5=2]

Group ‘A’ Group ‘B’
a) Google Chrome (i) Collection of information
b) Word count (ii) Temporary Storage
c) File (iii) Web Browser
d) Primary Memory (iv) Multimedia
(v) Number of words in document

8) Write down any four components of MS-Excel window. [2]

9) List out the three advantages of presentation software. [1.5]

10) Draw a neat and clean picture of computer system. [3]

[‘12.5 marks for Internal Assessment’]

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Time: 1.5 hrs. Vedanta Let’s Log in Computer Science _ Book 7

Model Question 4

COMPUTER SCIENCE
Class: VII

F.M.: 50

Group ‘A’ – [25 marks]

‘COMPUTER FUNDAMENTALS’

1) Answer the following questions. [5×2=10]

a) What are the functions of an operating system?
b) What is an input device?
c) Define computer ethics with two rules of computer ethics.
d) What is a computer network?
e) Explain antivirus software with examples.

2) Fill in the blanks with the appropriate word. [5×0.5=2.5]

a. The technology used in ................... generation computer was the transistor.

b. MS-Word is a ................... processing software.

c. ................... is a predefined layout of MS-Power point.

d. The main page of a website is called ...................

e. ................... is a harmful computer program.

3) Write ‘True’ or ‘False’ for the following statements. [5×0.5=2.5]

a. WAN covers a limited geographical area.
b. An e-book is a digital form of a printed book which could be read by using

computer.
c. Every formula in Excel begins with the ‘=’ sign.
d. The term computer graphics deals with audio and video content.
e. Web Browser lets us view or explore information on WWW.

4) Give full forms of: [4×1=4]

a) GUI b) LAN
c) IBM d) WWW

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Vedanta Let’s Log in Computer Science _ Book 7

5) Choose the correct answer. [4×0.5=2]

a. What is the central device of a star topology?

i. Hub/Switch ii. Server

iii. Node iv. Workstation

b. Software that gives life to the computer is .............................

i. Anti-Virus ii. Operating System

iii. Web Browser iv. QBASIC

d. ........................ was designed by Charles Babbage:

i. Difference Engine ii. Analytical Engine

iii. Both i and ii iv. None of the above

e. Web Pages are stored in ..............................

i. Client Computers ii. World Wide Web

iii. Web Server iv. All of the above

6) Convert as indicated. [4×1=4]

a. (59) into Binary
10

b. (1010) into Decimal
2

c. (162) into Decimal
8

d. (115) into Octal
10

Group ‘B’ – [12.5 marks] [2]
[2]
‘PROGRAMMING(QBASIC)’

7) Define programming.

8) Define Algorithm and Flowchart.

9) Write down the functions of following QBASIC statements:
[2×.5=1]

a. REM
b. INPUT

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Vedanta Let’s Log in Computer Science _ Book 7

10) Write an algorithm of a program that calculates simple interest

( )using the supplied principle, time and rate. PTR
SI= 100 [2]

11) Draw a flowchart that for any two numbers and displays their

product. [2.5]

12) Write down a program that asks for marks in English, Nepali and

Computer Science, calculates total marks, and percentage. [3]

[‘12.5 marks for Internal Assessment’]

[Note for teacher’s: Internal assessment…

Teachers are requested to keep the genuine record of student’s academic achievements as
well as social behaviour in the classroom through continuous assessment system in computer
science so that their learning process is tracked. Teachers are encouraged to develop their own
rubrics to keep the record of students however a sample is given below:

Topic FM OM

Manages his/her books and copies properly. 1.5

His /Her presentation is the classroom in energetic/ enthusiastic. 2

He/She takes initiation in solving the problems/ helping friends in subject 2
matter. (team work)

He/She uses polite salutation during submission of work via mail. 1

He/she submits the given work in time. 2

He/She handles the computer with care in computer lab. 2

He/She is curious about subject matter and is very interactive. 2

204 Approved by Curriculum Development Centre, Sanothimi, Bhaktapur