Easy2Siksha Sample Paper
GNDU Most Repeated (Important) Quesons
B.A. 1st Semester
Computer Applicaons (2022-2024)
Must-Prepare Quesons (80-100% Probability)
SECTION-A
1. 󷄧󼿒 Draw block diagram of computer and explain funcons of components (3 mes)
2. 󷄧󼿒 Explain input/output devices with characteriscs and working (3 mes)
󹵍󹵉󹵎󹵏󹵐 2025 Smart Predicon Table
Based on 4-Year Queson Paper Analysis + Latest Set
SECTION-A (Computer Fundamentals)
Queson Topic
Repeats
Years Appeared
Priority
Block Diagram of Computer &
Components
3 Times
2022 (Q1), 2023 (Q1 paral),
2024 (Q2)
󹻦󹻧 Very
High
Input/Output Devices &
Characteriscs
3 Times
2022 (Q2), 2023 (Q2 implied),
2024 (Q4)
󹻦󹻧 Very
High
Easy2Siksha Sample Paper
GNDU Most Repeated (Important) Answer
B.A. 1st Semester
Computer Applicaons (2022-2024)
Must-Prepare Quesons (80-100% Probability)
Answer Paper
SECTION-A
 󷄧󼿒 Draw block diagram of computer and explain funcons of components (3 mes)
Ans: 󷆧󷩕󷆗󷆨󷆩󷆚󷩖󷆛󷩗󷩘󷩙󷆜󷩚󷆝󷇆 The Computer as a City: A Story of Its Components
Imagine you are standing at the gates of a grand futuristic city. This city is not made of
bricks and roads, but of circuits, chips, and logic. Every citizen here has a role, every
street has a direction, and together they make the city thrive. This city is called “The
Computer System.”
At the heart of this city lies its block diagram—a map that shows how different parts are
connected and how they work together. Let’s walk through this city step by step,
meeting its key citizens and understanding their duties.
󺄄󺄅󺄌󺄆󺄇󺄈󺄉󺄊󺄋󺄍 Block Diagram of a Computer
Here’s a simple representation of the block diagram we’ll explore:
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󺡨󺡩󺡪󺡫󺡬 1. Input Unit – The City Gates
Every city has gates where visitors enter. In our computer city, the Input Unit is that
gate.
• Role: It allows information (data and instructions) to enter the system.
• Examples: Keyboard, mouse, scanner, microphone.
• Story Analogy: Imagine a student walking into a classroom carrying books and
questions. The classroom is the computer, and the student is the input. Without
someone bringing in material, the class cannot begin.
The input unit doesn’t just let people in—it also translates human language into
machine language (binary 0s and 1s) so that the city can understand.
󼩏󼩐󼩑 2. Central Processing Unit (CPU) – The Mayor’s Office
Once the data enters, it needs leadership, decision-making, and execution. That’s where
the CPU comes in. Think of it as the mayor’s office of the city. It has three main
departments:
a) Control Unit (CU) – The City Planner
• The CU is like the planner who directs traffic, ensures every worker knows their
task, and keeps order.
• It doesn’t do the actual work but guides the flow of data and instructions.
• Example: If you type “2 + 3,” the CU tells the Arithmetic Logic Unit (ALU) to
perform addition and then instructs memory to store the result.
b) Arithmetic Logic Unit (ALU) – The Mathematician and Judge
• The ALU is the mathematician of the city. It performs all calculations: addition,
subtraction, multiplication, division.
• It is also the judge, handling logical decisions like comparisons (greater than, less
than, equal to).
• Without the ALU, the city would have no way to solve problems or make
decisions.
c) Registers – The Mayor’s Desk
• Registers are tiny, super-fast storage spaces inside the CPU.
• They hold data temporarily while the CPU is working, just like a mayor keeps
urgent files on their desk instead of sending them to the archives.
Together, CU, ALU, and Registers make the CPU the brain of the computer.
󹶜󹶟󹶝󹶞󹶠󹶡󹶢󹶣󹶤󹶥󹶦󹶧 3. Memory Unit – The City Library
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Every city needs a library to store knowledge. In our computer city, the Memory Unit is
that library.
• Primary Memory (RAM): Like the reading tables in the library—temporary, quick
access, but once you leave (power off), the notes vanish.
• Secondary Memory (Hard Disk, SSD): Like the permanent shelves of books—
slower to access but long-lasting.
• Cache Memory: Like a librarian’s desk where the most frequently used books are
kept handy for quick reference.
The memory unit ensures that data and instructions are stored, retrieved, and supplied
to the CPU whenever needed.
󹷏󹷌󹷍󹷎 4. Output Unit – The City’s Loudspeakers
What good is a city if it never communicates with the outside world? The Output Unit is
the city’s loudspeaker, newspaper, and display board.
• Role: Converts processed data (machine language) back into human-readable
form.
• Examples: Monitor, printer, speakers.
• Story Analogy: Imagine the teacher in the classroom announcing the result of a
calculation to the students. That’s the output unit at work.
󷄧󹹯󹹰 The Cycle of Life in the Computer City
Let’s put it all together in a story:
1. Input arrives – A student enters the classroom with a math problem: “What is 25
× 4?”
2. Control Unit directs – The teacher (CU) tells the mathematician (ALU) to solve it.
3. ALU calculates – The ALU quickly multiplies 25 by 4 and gets 100.
4. Registers hold – The answer is kept on the teacher’s desk (register) for a
moment.
5. Memory stores – The answer is then written in the notebook (RAM) or archived
in the library (hard disk).
6. Output announces – Finally, the teacher writes “100” on the blackboard
(monitor) so everyone can see.
This cycle repeats endlessly, making the city vibrant and functional.
󼩺󼩻 Why This Block Diagram Matters
• It shows the flow of information clearly.
• It helps us understand how different parts of the computer are interdependent.
• It simplifies the complexity of modern machines into a basic, universal model.
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󹵍󹵉󹵎󹵏󹵐 Comparative Table for Quick Revision
Component
Role in Story (City)
Technical Function
Input Unit
City Gates / Student
entry
Accepts data &
instructions
Control Unit
City Planner / Teacher
Directs flow of data
ALU
Mathematician & Judge
Performs arithmetic &
logic
Registers
Mayor’s Desk
Temporary fast storage
Memory
Unit
City Library
Stores data &
instructions
Output Unit
Loudspeaker /
Blackboard
Displays results
2. 󷄧󼿒 Explain input/output devices with characteriscs and working (3 mes)
Ans: 󷘧󷘨 The Story of Input and Output Devices
Imagine you are watching a grand stage play. The curtain rises, and the spotlight falls on
a magnificent hall called “The Computer System.” Inside this hall, two groups of
performers are preparing for the show: the Input Devices and the Output Devices.
Without the input actors, the play would never begin—because no one would bring the
script or the cues. Without the output actors, the audience would never know the
story’s ending. Together, they make the performance meaningful.
Let’s step into this play and meet the characters one by one.
󷘜󷘝󷘞󷘟󷘠󷘡󷘢󷘣󷘤󷘥󷘦 Act 1: Input Devices – The Messengers
Input devices are like messengers who carry information from the outside world into the
computer. They are the storytellers who whisper the script into the ears of the director
(CPU).
󽆐󽆑󽆒󽆓󽆔󽆕 Keyboard – The Writer of Words
• Working: Each key you press sends an electronic signal to the computer, which
translates it into binary code.
• Characteristic: Reliable, easy to use, and designed for text-heavy input.
• Story Role: The keyboard is like a poet, carefully writing down every word of the
play.
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󺃾󺃿 Mouse – The Pointer and Navigator
• Working: Movement of the mouse is detected by sensors (optical or laser), which
translate motion into cursor movement on the screen.
• Characteristic: Quick, intuitive, and perfect for graphical interaction.
• Story Role: The mouse is like a stage director pointing out where the spotlight
should shine.
󹸱󹸲󹸳󹸴󹸷󹸵󹸸󹸶 Scanner – The Artist’s Eye
• Working: It shines light on a document, captures the reflection, and converts it
into digital form.
• Characteristic: High accuracy, useful for images and text.
• Story Role: The scanner is like a painter who copies a picture from the real world
and hangs it inside the computer’s gallery.
󷗰󷗮󷗯 Microphone – The Singer’s Voice
• Working: Converts sound waves into electrical signals, which are then digitized.
• Characteristic: Captures audio input, essential for voice commands and
recordings.
• Story Role: The microphone is the singer who brings melody into the play.
󹸲󹸹󹸴󹸻󹸵󹸼󹸶󹸺 Camera – The Photographer
• Working: Captures light through lenses, converts it into digital signals.
• Characteristic: Provides visual input for video calls, recognition, and recording.
• Story Role: The camera is the photographer who freezes moments and delivers
them to the computer.
󷘜󷘝󷘞󷘟󷘠󷘡󷘢󷘣󷘤󷘥󷘦 Act 2: Output Devices – The Performers
Once the CPU has processed the script, the Output Devices step onto the stage to
perform for the audience. They are the actors who bring the story alive.
󺃱󺃲󺃳󺃴󺃵 Monitor – The Visual Performer
• Working: Receives signals from the graphics card and lights up pixels to form
images.
• Characteristic: Clear display, resolution-based quality, real-time feedback.
• Story Role: The monitor is the lead actor, showing the play to the audience in
vivid detail.
󺃶󺃷󺃸󺃹󺃺󺃻󺃼󺃽 Printer – The Author’s Publisher
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• Working: Converts digital text/images into physical copies on paper (inkjet, laser,
or dot matrix).
• Characteristic: Permanent output, tangible, useful for records.
• Story Role: The printer is the publisher who takes the script and prints it into a
book for the audience to carry home.
󹺊󹺆󹺋 Speakers – The Musicians
• Working: Convert digital audio signals into sound waves.
• Characteristic: Bring life through music, narration, and sound effects.
• Story Role: The speakers are the orchestra, filling the hall with sound.
󷗱󷗲󷗵󷗳󷗴 Projector – The Grand Storyteller
• Working: Projects computer visuals onto a large screen using light.
• Characteristic: Enlarged display, useful for classrooms, theaters, and
presentations.
• Story Role: The projector is the storyteller who narrates to a large audience at
once.
󷄧󹹯󹹰 Act 3: The Dance of Input and Output
The magic of the play lies not in individual performances but in the interaction between
input and output.
• A student types an essay on the keyboard (input) → The CPU processes it → The
monitor (output) displays it.
• A teacher speaks into a microphone (input) → The computer records and
processes → The speakers (output) replay it.
• A designer scans a sketch using a scanner (input) → Edits it digitally → Prints the
final artwork using a printer (output).
This constant back-and-forth is what makes the computer a living, breathing system.
󺄄󺄅󺄌󺄆󺄇󺄈󺄉󺄊󺄋󺄍 Diagram of Input and Output Devices
󹵍󹵉󹵎󹵏󹵐
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Comparative Table for Quick Revision
Device
Type
Examples
Characteristics
Working Principle
Story Role
Input
Keyboard
Text input,
reliable
Key press → binary
code
Poet
Input
Mouse
Graphical control
Motion → cursor
movement
Director
Input
Scanner
Image/text
capture
Light reflection →
digital
Painter
Input
Microphone
Audio input
Sound waves → signals
Singer
Input
Camera
Visual input
Light → digital signals
Photographer
Output
Monitor
Visual display
Signals → pixels
Lead Actor
Output
Printer
Hard copy
Digital → paper print
Publisher
Output
Speakers
Audio output
Signals → sound waves
Orchestra
Output
Projector
Large display
Light projection
Storyteller
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