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Students of class 9th are welcome to this portal. Here on this page, we have uploaded Multiple Choice Questions for your help. Many websites offer the MCQs, but you will surely get the complete MCQs of your syllabus from our website, ilmkidunya. To download the computer science 9th class chapter 3 MCQs read the page till the end. We will inform you how to download these MCQs for your exams preparation. It will help you in your revision and makes you enable to solve the paper.
MCQ's Test For Chapter 3 "Digital Systems and Logic Design"
Try The MCQ's Test For Chapter 3 "Digital Systems and Logic Design"
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Total Questions12
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Time Allowed15
Digital Systems and Logic Design
00:00
Question # 1
the output of AND Operation is 1 only whenboth inputs are?
Question # 2
Whcih one of the example of Digital Signal?
Question # 3
Which signals are in continues form?
Question # 4
Whihc signals are in discree form?
Question # 5
In K-map , K stand for..................?
Question # 6
In digit system 0 epresents?
Question # 7
Which one is the example of Analog signal?
Question # 8
In digit system 1 represents?
Question # 9
Comparison of two or more values are performed in?
Question # 10
What does DAC represents?
Question # 11
Bit stand for .......?
Question # 12
Which logic gate outputs true only if both inputs are true?
MCQs of Chapter 3 (Digital Systems and Logic Design)
From 9th class Computer Science Chapter 3 important MCQs, you will learn the concepts of input and output devices and their role in computer systems. The chapter covers devices like Keyboard, Mouse, Printers, Scanners, Monitors, and Speakers, explaining their functions in detail. These MCQs will help you understand the topic better and prepare effectively for your final exams.
What is the Best Way to Prepare Multiple Choice Questions?
Preparing the 9th class computer science MCQs chapter 3 can be challenging if you prepare them from your book. This is quite a difficult task to highlight all the important MCQs according to paper point of view. So, in this way, we are offering the 9th class computer science ch3 mcqs solved on our website. You can download the pdf file of them. Along with that, you can also appear in the online MCQ test and get the result after passing it. This is the best and simplest way for you to prepare better.
Top Scorers Of Chapter 3 "Digital Systems and Logic Design" MCQ`s Test
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S Syed Husnain Ali Gillani 23 - Dec - 2025 00 Min 37 Sec 12/12 -
S Shoukat 02 - Jan - 2025 00 Min 38 Sec 12/12 -
A Aaraiz Hassan 05 - May - 2026 00 Min 54 Sec 12/12 -
U Usman Mudassar 19 - Jan - 2025 01 Min 25 Sec 12/12 -
M Muhammad Shafiq Hussain 16 - Jan - 2025 01 Min 48 Sec 12/12 -
M Muhammad Rafay Qureshi 16 - Jan - 2025 02 Min 06 Sec 12/12 -
N Nazma Saad 11 - Feb - 2026 01 Min 05 Sec 11/12 -
B Bilal Imram 20 - Jan - 2025 01 Min 10 Sec 11/12 -
S Shahab Kazmi 22 - Aug - 2025 01 Min 11 Sec 11/12 -
M Muhammad Hamza 08 - Jan - 2025 01 Min 13 Sec 11/12 -
Y YAD family 26 - Oct - 2025 01 Min 24 Sec 11/12 -
S Sitara Mubeena 10 - Jan - 2025 01 Min 38 Sec 11/12 -
M maryam sajjad 25 - Mar - 2026 01 Min 52 Sec 11/12 -
A Asma Ramzan 17 - Jan - 2025 01 Min 57 Sec 11/12 -
M Mohsin Shah 11 - Jan - 2025 02 Min 17 Sec 11/12
9th Class (English Medium) Computer Science (New Book) Chapter 3 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Whcih one of the example of Digital Signal? |
A. Binary
B. Sound Wave
C. 11
D. 00
|
| 2 | Which of the following Boolean expressions represents the OR operation |
A. A.B
B. A+B
C. A
D. A-B
|
| 3 | the output of AND Operation is 1 only whenboth inputs are? |
A. 10
B. 0
C. 1
D. 00
|
| 4 | In digit system 1 represents? |
A. ON
B. OFF
C. OF
D. All of these
|
| 5 | Bit stand for .......? |
A. Binary integer
B. Binary Value
C. Binary Number
D. Binary digit
|
| 6 | What does ADC represents? |
A. Analog Digital Conversation
B. Analog Digital Conversion
C. Analog Digital Convenient
D. All of these
|
| 7 | Which logic gate outputs true only if both inputs are true? |
A. OR gate
B. AND gate
C. XOR gate
D. NOT gat
|
| 8 | Which signals are in continues form? |
A. Digital
B. Analog
C. Both a and b
D. None of these
|
| 9 | In K-map , K stand for..................? |
A. Knowldege
B. Karnaugh
C. Both a and b
D. None of these
|
| 10 | Which one is the example of Analog signal? |
A. Binary
B. Sound Wave
C. 10
D. None of these
|
Test Questions
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