P]lR5s låtLo sDKo'6/ lj1fg
Opt. II
Computer Science
sIff M (
Class: 9
k|yd q}dfl;s k/LIff – @)*#
First
Terminal Examination – 2083
lbOPsf] lgb]{zgcg';f/
l;h{gfTds pQ/x¿ lbg'xf];\ .
Give the creative answers based on the
given instructions.
Time: 2 Hours -;do M @ 306f_ Full
Marks: 50 -k"0ff{ª\sM %)_
Group ‘A' -;d"x …s…_
lbOPsf ljsNkx¿af6 ;xL pQ/ 5fGg'xf];\ / cfˆgf] pQ/k'l:tsfdf
n]Vg'xf];\ . (Choose the correct option from the following
and write in your answer sheet.) (10×1=10)
1. æsDKo'6/Æ
zAb Nofl6g efiffsf] æu0fgf ug{'Æ eGg] cy{ lbg] s'g zAbaf6 cfPsf] xf] <
The word “computer” is derived from a
Latin word meaning “to calculate.” Which word is it?
a. Computex b.
Computare
c. Comprint d.
Compulink
2. lgDgdWo]
sDKo'6/sf] dgf]/~hg If]qdf k|of]u x'g] ;a}eGbf pko'St pbfx/0f s'g xf] <
Which situation best demonstrates the use
of computers in entertainment?
a. d'6'sf]
w8\sg lgu/fgL ug{' Monitoring
heartbeats
b. jiff{ dfq
dfkg ug{' Measuring rainfall only
c. xft}n]
xflh/L /]s8{ ug{' Recording
attendance manually
d. cgnfOg
u]d v]Ng' / rnlrq :l6«d ug{' Online
gaming and streaming movies
3. Pp6f
ljBfno sfof{non] k'/fgf 5flkPsf k|df0fkqx¿ l8lh6n ¿kdf ;'/lIft /fVg rfxG5 . s'g
pks/0f
k|of]u ug{'k5{ <
A school office wants to store old printed
certificates in digital form. Which device should be used?
a. Scanner b.
Microphone
c. Speaker d.
Joystick
4. cgnfOg
a}7ssf] ;dodf cfjfhdfkm{t ;~rf/ ug{ d'Vo ¿kdf s'g Ogk'6 pks/0f k|of]u ul/G5
<
During an online meeting, which input
device is mainly used for voice communication?
a. Barcode Reader b.
Magnetic Stripe Reader
c. Microphone d.
Scanner
5. sDKo'6/
k|0ffnLdf CPU sf] d'Vo
sfo{ s] xf] <
What is the primary function of the CPU in
a computer system?
a. c+sul0ftLo
tyf tfls{s sfo{ ug{' Arithmetic and logical operations
b. u|flkmS;
k|bz{g ug{' Graphics rendering
c. 8f6f e08f/0f
ug{' Memory storage
d. 8f6f
Ogk'6 ug{' Data input
6. k|f/lDes
txsf] sf]l8ª lzIffdf Ans k|f]u|fldª lsg ;fdfGo ¿kdf k|of]u ul/G5 <
Why is block programming commonly used in
beginner-level coding education?
a. o;df pGgt
sf]l8ª ;Lk cfjZos k5{ It requires advanced coding skills
b. o;n]
afOg/L lgb]{zg dfq k|of]u u5{ It uses binary instructions only
c. of]
k|f/lDes l;sfOstf{x¿ / afnaflnsfn] ;lhn} a'´\g ;S5g\ It is easy for
beginners and children to understand
d. o;n] ;a}
k|f]u|fldª efiffnfO{ k|lt:yfkg u5{ It replaces all programming languages
7. Ps
hgf k|f/lDes k|f]u|fd/n] Scratch lgMz'Ns 8fpgnf]8 u5{, kl/of]hgfx¿ kl/dfh{g u5{ / cgnfOg
;f´f u5{ . o;n] Scratch
sf] s'g ljz]iftf b]vfpF5 <
A beginner
programmer downloads Scratch freely, modifies projects, and shares them online.
Which feature of Scratch is represented here?
a. n's]sf]
;ˆ6j]o/ Hidden software b.
v'nf ;|f]t
Kn]6kmd{ Open-source platform
c. :jfldTjo'St
;ˆ6j]o/ Proprietary software d. afOg/L k|f]u|fldª
Binary programming
8. Scratch df
Plgd];g agfpFbf :k|fO6nfO{ æHelloÆ eGg / o;sf] kf];fs kl/jt{g ug{ s'g Ans ;d"x k|of]u
ul/G5 <
While designing an animation in Scratch,
which block category is used to make a sprite say “Hello” and change its
costume?
a. Motion b.
Control
c. Sound d.
Looks
9. Python k|f]u|fd n]Vg] qmddf cfb]zx¿ n]Vg] lgodx¿ ;xL ¿kdf kfngf gubf{ q'l6
b]vf k5{ . oL lgodx¿nfO{ s] elgG5 <
While writing a Python program, errors
occur because the rules of writing commands are not followed properly. What are
these rules called?
a. Programmer b.
Syntax
c. Programming d.
Hacker
10. ;ˆ6j]o/
ljsf;stf{n] ;ˆ6j]o/ ;fj{hlgs ug{' cl3 ;|f]t sf]8df ePsf q'l6x¿ klxrfg u/L x6fpg
;s]g. s'g ultljlw ;xL ¿kdf ;DkGg ul/Psf] lyPg<
A software
developer failed to identify and remove errors from the source code before
releasing the software. Which activity was most likely not performed properly?
a. Coding b.
Testing
c. Debugging d.
Translating
Group ‘B' -;d"x …v…_
lbOPsf k|Zgsf] 5f]6f] pQ/ lbg'xf];\
M
Answer the following short
questions: [10×2=20]
11. a}+lsª
If]qdf sDKo'6/ ljleGg sfo{sf nflu Jofks ¿kdf k|of]u ul/G5 . a}+lsª If]qdf
sDKo'6/sf s'g} b'O{ k|of]ux¿ pNn]v ug{'xf];\ . [1+1]
Computers are widely used in the banking sector for
different purposes. Mention any two uses of computers in banking.
12. Pp6f
sfof{nosf] sDKo'6/ w]/} 3)6f;Dd nuftf/ sfd ubf{ klg gyfsL jf z'4tfdf sdL gcfO{
sfo{ ul//xG5 . oxfF sDKo'6/sf] s'g ljz]iftf b]vfOPsf] 5 < 5f]6s/Ldf JofVof
ug{'xf];\ . [1+1]
An office computer works continuously for many hours without
getting tired or losing accuracy. Which characteristic of a computer is shown
here? Explain briefly.
13. CPU sf
s'g} b'O{ cjojx¿sf] gfd n]Vg'xf];\ / k|To]ssf] Ps–Ps sfo{ n]Vg'xf];\ . [1+1]
Name any two components of CPU and write one function of
each.
14. Ogk'6
pks/0f kl/eflift ug{'xf];\ / sDKo'6/df kf7 k|lji6 ug{ k|of]u x'g] s'g} Ps
pbfx/0f n]Vg'xf];\ . [1+1]
Define an input device and give one example used for
entering text into a computer.
15. Arduino
s] xf] < ;fy} o;sf] s'g} b'O{ k|of]u klg n]Vg'xf];\ . [1+1]
What is Arduino? Also mention any two applications of it.
16. ljBfnox¿df
k|f]u|fldª l;sfpg Scratch Jofks ¿kdf k|of]u ul/G5 . k|f/lDes l;sfOstf{df´ o;sf]
nf]slk|otfsf] Pp6f sf/0f n]Vg'xf];\ . ;fy} Scratch df k|of]u x'g] k|f]u|fldª
ljlwsf] k|sf/ klg pNn]v ug{'xf];\ . [1+1]
Scratch is
widely used in schools for teaching programming. Give one reason for its
popularity among beginners. Also mention the type of programming approach used
in Scratch.
17.
k|f]u|fd ;~rfng / q'l6 b]vfpg] k|lqmofdf compiler / interpreter aLr s] km/s 5 <
How does a compiler
differ from an interpreter in program execution and error reporting? [2]
18. tn
lbOPsf] ;"q k|of]u u/L ;fwf/0f Aofh u0fgf ug]{ algorithm n]Vg'xf];\ M [2]
19. s'g}
JolSt dtbfg ug{ of]Uo 5 jf 5}g eGg] hfFr ug]{ flowchart agfpg'xf];\ . [2]
Draw a flowchart to check whether a person is eligible to
vote or not.
20. Ps hgf
k|f]u|fd/n] plrt k/LIf0f gu/L ;ˆ6j]o/ ;fj{hlgs u5{ . o;af6 s:tf ;d:ofx¿ b]vf
kg{ ;S5g\ < ;fy}, k|of]udf Nofpg' cl3 k/LIf0f lsg cfjZos x'G5 < [1+1]
A programmer releases software without proper testing. What
kind of problems may appear? Also state why testing is necessary before
deployment.
Group ‘C' -;d"x …uÚ_
lbOPsf k|Zgsf] nfdf] pQ/ lbg'xf];\
M
Answer the following questions in long. [5 × 4 = 20]
21. sDKo'6/n] 8f6fnfO{ s;/L k|zf]wg u/L
cy{k"0f{ ;"rgf pTkfbg u5{ < pko'St lrq;lxt IPOS rqmsf]
JofVof ug{'xf];\ . [1+2+1]
How does a computer process data to produce meaningful
information? Explain the IPOS cycle with a suitable diagram.
22. tn
lbOPsf sfo{x¿ ug]{ Scratch l:qmK6 tof/ ug{'xf];\ M
Prepare a Scratch script that performs the following tasks:
- Moves the sprite 20 steps forward
- Displays the message “Welcome to Scratch!” for 2
seconds
- Starts execution when the green flag is clicked
;fy},
l:qmK6df k|of]u ePsf Ansx¿sf] ju{ klg klxrfg ug{'xf];\ . [4]
Also identify
the categories of blocks used in the script.
23. Micro:bit kl/eflift ug{'xf];\ . Micro:bit sf s'g} tLg k|of]ux¿sf] JofVof ug{'xf];\ . [1+3]
Define Micro:bit. Explain any three applications of
Micro:bit.
24. æHigh–level
programming language x¿
Low–level programming language x¿eGbf
a9L user–friendly x'G5g\
.Æ pko'St sf/0f;lxt k'li6 ug{'xf];\ . [4]
“High-level programming languages are considered more
user-friendly than low-level programming languages.” Justify the statement with
suitable reasons.
25. ;fdfGo
¿kdf k|of]u x'g] s'g} rf/ flowchart ;+s]tx¿ ltgsf sfo{;lxt lrqåf/f b]vfpg'xf];\ . [4]
Illustrate any four commonly used flowchart symbols with
their functions.
?ÿ@
Marking
Scheme
P]lR5s låtLo sDKo'6/ lj1fg
Opt. II
Computer Science
sIff M (
Class: 9
k|yd q}dfl;s k/LIff – @)*#
First
Terminal Examination – 2083
Time: 2 Hours -;do M @ 306f_ Full
Marks: 50 -k"0ff{ª\sM %)_
Group ‘A' -;d"x …s…_
|
Q.No. |
Correct Answer |
Marks [10×1=10] |
|
1. |
b. Computare |
1 |
|
2. |
d. Online gaming and streaming
movies |
1 |
|
3. |
a. Scanner |
1 |
|
4. |
c. Microphone |
1 |
|
5. |
a. Arithmetic and logical
operations |
1 |
|
6. |
c. It is easy for beginners and
children to understand |
1 |
|
7. |
b. Open-source platform |
1 |
|
8. |
d. Looks |
1 |
|
9. |
b. Syntax |
1 |
|
10. |
c. Debugging |
1 |
Group ‘B' -;d"x …v…_
|
Q.No. |
Full Exam-Type
Answer |
Detailed Marking
Scheme |
|
11. |
Any two uses of computers in
banking are: 1. Maintaining customer accounts and transaction records. 2. Online banking, ATM, and money transfer services. Or (any satisfactory answer) |
Correct first use
= 1 mark Correct second use
= 1 mark Partially correct
answer – Half mark |
|
12. |
The characteristic of a computer shown here is Diligence.
Diligence means a computer can work continuously for a long period without
getting tired, bored, or losing accuracy and efficiency. Or (any satisfactory answer) |
Correct
characteristic identified = 1 mark Correct brief
explanation = 1 mark Partially correct
answer – Half mark |
|
13. |
Any two components of CPU and their functions: 1. ALU (Arithmetic Logic Unit):
Performs arithmetic calculations and logical operations. 2. CU (Control
Unit): Controls and coordinates all activities of the computer system. Or (any satisfactory answer) |
Correct component
name = 0.5 mark Correct function = 0.5 mark Correct second
component name = 0.5 mark Correct second
function = 0.5 mark |
|
14. |
An input device
is a hardware device used to enter data and instructions into a computer. Example: One
example used for entering text into a computer is a Keyboard. Or (any satisfactory answer) |
Correct definition
= 1 mark Correct example = 1
mark Partially correct
answer – Half mark |
|
15. |
Arduino is a
programmable electronic board used to build electronic and automation
projects. Two applications
of Arduino: ·
Robotics
projects ·
Smart
home systems ·
Automatic
irrigation systems (any two) Or (any satisfactory answer) |
Correct definition
of Arduino = 1 mark Correct two
applications = 1 mark |
|
16. |
Scratch is popular
among beginners because it is easy to learn and uses visual blocks instead
of complex coding syntax. Scratch uses a block-based
programming approach. Or (any satisfactory answer) |
Correct reason = 1
mark Correct
programming approach = 1 mark |
|
17. |
A compiler
translates the whole program at once and reports errors after compilation. An interpreter
translates and executes the program line by line and reports errors
immediately after each line. Or (any satisfactory answer) |
Correct difference
in execution = 1 mark Correct difference
in error reporting = 1 mark Incomplete or vague differences - 0.5 to 1 mark |
|
18. |
Algorithm to Calculate Simple Interest: Step 1: Start Step 2: Input P,
T, and R Step 3: Calculate
SI = (P × T × R) / 100 Step 4: Display SI
Step 5: Stop Or (any satisfactory answer) |
Correct
start/input steps = 0.5 mark Correct
formula/calculation step = 1 mark Correct
output/stop steps = 0.5 mark |
|
19. |
Flowchart to Check Voting Eligibility: Or (any satisfactory answer) |
Correct
start/input = 0.5 mark Correct decision
condition = 0.5 mark Correct outputs = 0.5
mark Correct stop/flow = 0.5 mark |
|
20. |
If software is
released without proper testing, problems such as bugs, crashes, incorrect
output, and security issues may appear. Testing is
necessary before deployment to ensure the software works correctly,
efficiently, and without errors. Or (any satisfactory answer) |
Correct problems
mentioned = 1 mark Correct importance
of testing = 1 mark |
Group ‘C' -;d"x …uÚ_
|
Q.No. |
Full Exam-Type Answer |
Detailed Marking Scheme |
|
21. |
A computer processes data through the IPOS
cycle, where raw data is converted into meaningful information. The stages of the IPOS cycle are: 1. Input: Data and instructions are entered into the
computer using input devices like keyboard, mouse, or scanner. 2.
Process: The CPU processes the
entered data according to given instructions. 3. Output: The processed result is displayed as
meaningful information through output devices like monitor or printer. 4.
Storage: The processed
information is stored for future use. Diagram: Input → Processing → Output → Storage Or (any
satisfactory answer) |
Meaning of data
processing/IPOS = 1 mark Correct explanation of
Input and Processing = 1 mark Correct explanation of
Output and Storage = 1 mark Correct diagram = 1
mark |
|
22. |
Scratch Script: Event Block: When
Green Flag Clicked Motion Block: Move
20 Steps Looks Block: Say
“Welcome to Scratch!” for 2 Seconds Script Representation: When Green Flag Clicked → Move 20 Steps → Say “Welcome to
Scratch!” for 2 Seconds Block Categories Used: • Event Block • Motion Block • Looks Block Or (any satisfactory answer) |
Correct Event
block/script = 1 mark Correct Motion
block/script = 1 mark Correct Looks
block/script = 1 mark Correct block categories
identified = 1 mark |
|
23. |
Micro:bit is a
small programmable device used to create smart electronic projects. Any three applications of Micro:bit are: 1.
Smart
home automation system 2.
Weather
monitoring device 3.
Robotics
projects Or (any satisfactory answer) |
Correct definition = 1
mark Any three correct
applications = 1 × 3 = 3 marks |
|
24. |
High-level programming
languages are more user-friendly than low-level programming languages
because: 1. They use simple
English-like commands that are easy to understand. 2. They are easier to
write, debug, and maintain. 3. They require less
programming knowledge compared to machine language or assembly language. 4. They are portable and
can run on different computer systems with little modification. Therefore, high-level
languages are more suitable for beginners and application development. |
Any suitable first reason
= 1 mark Any suitable second
reason = 1 mark Any suitable third reason
= 1 mark Any suitable fourth reason / conclusion = 1 mark |
|
25. |
Any four commonly used flowchart symbols and their functions
are: 1. Terminal Symbol
(Oval): Represents the start or end of a flowchart. 2. Process Symbol
(Rectangle): Represents calculations or processing steps. 3. Input/Output Symbol
(Parallelogram): Represents input or output operations. 4. Decision Symbol
(Diamond): Represents decision making or condition checking. 5. Flow Line (Arrow):
Shows the direction of flow (any four) Or (any satisfactory answer) |
Correct first symbol with
function = 1 mark Correct second symbol
with function = 1 mark Correct third symbol with
function = 1 mark Correct fourth symbol
with function = 1 mark |
?ÿ@
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