Computers and IT – GK Questions and Answers (MCQs)
In today’s tech-driven world, basic computer knowledge is no longer optional — it’s essential. From sending emails to using digital banking or filling out online applications, computers play a major role in everyday life. That’s why questions on Computers and Information Technology (IT) have become a regular part of competitive exams and government job interviews.
This section is specially designed to help you build your computer awareness through topic-wise MCQs that are useful for students, job aspirants, and professionals preparing for exams like SSC, IBPS, SBI, UPSC, CDS, NDA, Railways, Teaching, and more. Whether you're from a technical background or just brushing up on basics, practicing these questions will help you score better and stay updated.
What you will learn in Computer GK:
Computer’s basic parts consist of input, output, storage and processing. In the basic Computer GK test section, you will learn the conceptual questions on number systems, different generations of computer, computer’s hardware and software, I/O devices, computer memory etc.
Start preparing for your upcoming government exams with Computer & IT GK and boost your confidence one quiz at a time!
Practice Computers and IT by Category
| C Programming MCQs |
| Computer Fundamentals MCQ |
| Computer Networking MCQs |
| Data Structures & Algorithms MCQs |
| Database MCQs |
| MS Excel MCQs |
| MS Word MCQs |
| Operating System MCQs |
Computers and IT Practice MCQ Question and Answer
32
What is the function of a video card (GPU)?
33
What is a pixel?
34
What is the resolution of a display?
35
What is the purpose of a USB port?
36
What is Bluetooth technology used for?
37
What is the purpose of a VPN (Virtual Private Network)?
38
What is the difference between HTTP and HTTPS?
39
What is a cookie in the context of web browsing?
40
What is phishing?
41
What is the purpose of backing up data?
42
What is the full form of SSD?
43
Which of the following is a cloud storage service?
44
What is the purpose of an IP address?
45
What is the function of DNS (Domain Name System)?
46
What is virtualization?
47
What is the Internet of Things (IoT)?
48
What is artificial intelligence (AI)?
49
What is machine learning (ML)?
50
What is cybersecurity?
51
Which of the following is the correct syntax to output 'Hello World' in C?
52
Which header file is required for using the printf function?
53
Which of the following is used for a single-line comment in C?
54
Which data type is used to store a single character?
55
What will be the output of: printf("%d", 10 + 5 * 2);?
56
Which operator is used to get the remainder of a division in C?
57
Which function is used to read a character from the user in C?
58
Which of the following is a valid identifier in C?
59
What is the size of an int on a typical 32-bit machine?
60
What will be the output of: printf("%c", 65);?
Benefits of Practicing Computer & IT GK MCQs
- Frequently Asked in Exams: Computer awareness questions are commonly seen in Banking, SSC, Railways, Teaching, and other government exams.
- Score-Boosting Section: A well-prepared computer section can help you improve your overall score with less effort.
- Helpful in Interviews: Demonstrating digital knowledge is an advantage in interviews and group discussions, especially for roles requiring basic computer skills.
- Builds Strong Fundamentals: Practicing MCQs regularly helps strengthen your understanding of key computer and IT concepts.
- Easy to Remember: Repeated quiz practice improves memory retention, especially for definitions, shortcuts, and abbreviations.