Computer Awareness MCQ Quiz - Objective Question with Answer for Computer Awareness - Download Free PDF

Last updated on Mar 21, 2025

Latest Computer Awareness MCQ Objective Questions

Computer Awareness Question 1:

___________ is distributed with the explicit legal warning not to modify it and technically locked to prevent other developers to see or modify its source.

  1. Copyleft
  2. Closed proprietary
  3. Proprietary software
  4. Open source
  5. None of the above

Answer (Detailed Solution Below)

Option 3 : Proprietary software

Computer Awareness Question 1 Detailed Solution

The correct answer is

Key Points

  • Proprietary software
    • It is distributed with the explicit legal warning not to modify it and technically locked to prevent other developers to see or modify its source. Hence, Option 3 is correct.
    • Proprietary software is any software that is copyrighted and bears limits against use, distribution, and modification that are imposed by its publisher, vendor, or developer.
    • It remains the property of its owner/creator and is used by end-users/organizations under predefined conditions.
    • It is also called commercial software or closed-source software inattention to one of its most important characteristics.
    • This software also is really good and unique and sometimes, it can be modified within creators' limits.
    • Some of the most important software programs that revolutionized the world years ago were in this category.

Additional Information

Copyleft 
  • It is the practice of granting the right to freely distribute and modify intellectual property with the requirement that the same rights be preserved in derivative works created from that property.
Closed proprietary
  • Proprietary software, also known as non-free software or closed-source software.
Open-source software
  • It is computer software that is released under a license in which the copyright holder grants users the rights to use, study, change, and distribute the software and its source code to anyone and for any purpose. 

Computer Awareness Question 2:

In the CD-R type of CD, data can be _________. 

  1. Only written once
  2. Only read once
  3. Written once. read many times
  4. Written many times, read once 
  5. None of the above

Answer (Detailed Solution Below)

Option 3 : Written once. read many times

Computer Awareness Question 2 Detailed Solution

The correct option is (3)

Written once. read many times

Key Points

  • WORM (Write Once, Read Multiple) discs include Compact Disc Recordable (CD-R) discs.
  • These CDs can only store data once before it permanently resides there. A second recording onto the disc is not possible. Then, it can be read like a typical CD-ROM.
  • Data or music is typically stored on a CD-R (Compact Disc-Recordable). Storage Size: At the moment, the industry norms for CDs are 74 minutes/650 MB, 80 minutes/700 MB (12 cm), and 21 minutes/185 MB (8 cm).

Additional Information

  •  A CD or DVD A read-only disc is a read-only memory (CD-ROM). Commercially produced discs of this type cannot be used to store data once they have been generated.
  • CD-R and CD-RW are the two different types of writeable CDs. With CD-R discs, you can only write to them once, but you can read from them repeatedly.
  • You can write to CD-RW discs numerous times and read content from them an infinite number of times.

Computer Awareness Question 3:

What enables IoT devices to gather data and exchange it over the network?

  1. Biochip transponders 
  2. Actuators and sensors
  3. Human interaction
  4. Data encryption techniques
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : Actuators and sensors

Computer Awareness Question 3 Detailed Solution

The correct answer is Actuators and sensors

Key Points

  • Actuators and sensors are critical components in IoT devices that enable the gathering of data and its exchange over a network.
  • Sensors collect data from the environment, such as temperature, humidity, and motion, while actuators perform actions based on the data received, such as turning on a light or adjusting a thermostat.
  • These components allow IoT devices to interact with their surroundings and communicate the collected data to other devices or centralized systems for processing and analysis.
  • The integration of sensors and actuators with network connectivity forms the backbone of IoT systems, facilitating automation and real-time monitoring.

Additional Information

  • IoT (Internet of Things) refers to the network of physical objects embedded with sensors, software, and other technologies to connect and exchange data with other devices and systems over the internet.
  • The concept of IoT has various applications, including smart homes, healthcare, industrial automation, and environmental monitoring.
  • Data collected by IoT devices can be used for predictive maintenance, improving efficiency, and enhancing user experiences.
  • Ensuring data security and privacy is a significant challenge in IoT implementations, necessitating robust encryption and authentication mechanisms.

Computer Awareness Question 4:

Which of the following is a computer program that translates one program instruction (one line by line)at a time into machine language?

  1. Simulator
  2. Compiler
  3. CPU
  4. Interpreter
  5. None of the above

Answer (Detailed Solution Below)

Option 4 : Interpreter

Computer Awareness Question 4 Detailed Solution

The correct answer is Interpreter.

Important Points

  • A computer program that translates one program's instructions at a time into machine language is called an Interpreter.
  • An interpreter translates one instruction at a time and executes that instruction immediately.
  • Examples of interpreted languages are JavaScript, Python, Perl, etc.
  • A compiler is a program that translates computer code written in one high programming language into machine-language or code that can be understood by a digital computer's CPU.
  • An interpreter translates just one statement at a time from a program code into machine code, while a compiler scans the complete program and translates it into machine code at once.

Additional Information

  • A Central processing unit (CPU) is considered as the brain of the computer, all types of data processing operations are performed by the CPU.
  • It is generally composed of a control unit, main memory, and an arithmetic-logic unit.
  • The process of mathematical modeling, performed on a computer, to represent the dynamic responses of one system by the behavior of another system modeled after it is known as the computer simulation.

Computer Awareness Question 5:

Which printer prints characters and images without direct physical contact between the paper and the printing machinery?

  1. Impact Printer
  2. Non-Impact Printer
  3. Character Printer
  4. Line printer
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : Non-Impact Printer

Computer Awareness Question 5 Detailed Solution

The correct option is (2)

Non-Impact Printer

Key Points

  • Characters and images are created using non-impact printers without any actual physical contact between the printing machine and the paper.
  • It is a kind of printer that prints without striking or impacting a ribbon. They made use of inkjet, laser, xerographic, electrostatic, and chemical technologies. In general, non-impact printers are substantially quieter.
  • Non-Impact printers like laser printers print text or graphics without actually touching the paper.

Additional Information

  • An ink ribbon and paper come into touch directly when an impact printer is operating. The ink ribbon is struck by a metal or plastic head, which causes the ribbon to push against the paper and print the appropriate character (letter, digit, dot, or line) on the page.
  • A printer that only prints individual characters. Dot matrix printers are the most common type of character printer.
  • With speeds ranging from 150 to 2500 lines per minute, line printers print an entire line at once.
  • High-speed printing applications use line matrix printers. Invoices, bank statements, product shipment and transportation documentation, product compliance labels, and more are all created using them. Text, bar codes, and graphics can all be printed on line matrix printers.

Top Computer Awareness MCQ Objective Questions

The process of transferring files from Internet to user Computer is called:

  1. Downloading
  2. Uploading
  3. FTP
  4. JPEG

Answer (Detailed Solution Below)

Option 1 : Downloading

Computer Awareness Question 6 Detailed Solution

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Concept:

  • Downloading: It is a process of transferring files from the webserver(from the internetto the user's computer.
  • In this process, memory is required in the user's computer.
  • Only users can access this file.

Explanation:

  • Uploading: It is a process of transferring files from the user's computer to the webserver(on the internet).
  • In this process, memory is required in the webserver.
  • Anyone can access the file using the internet.
  • FTP: File Transfer Protocol
  • It is a set of rules for transferring data from one system to another on the internet.
  • JPEG: Joint Photographic Expert Group.
  • It is a graphic file format used for saving images.
  • Definition of downloading matches with given sentence therefore option 1 is the correct answer.

Additional Information

  •  Different file formats are used known as the computer file extension.

File Extension

Meaning
.apk Android package file
.gif Graphical interchange format
.png Portable Network Graphics
.jpg JPEG Image

What is the full form of COBOL?

  1. Common Basic Operating Language
  2. Computer Basic Oriented Language
  3. Computer Based Operating Language
  4. Common Business Oriented Language

Answer (Detailed Solution Below)

Option 4 : Common Business Oriented Language

Computer Awareness Question 7 Detailed Solution

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The correct answer is Common Business Oriented Language. 

  • COBOL stands for Common Business Oriented Language.
    • It is first developed in 1960 by the CODASYL Committee (Conference on Data Systems Languages).
    • It is primarily designed for use in business-oriented applications.

Additional Information

  • Some important Abbreviations
Abbreviation Stands for
ASCII American Standard Code for Information Interchange.
BIOS Basic Input Output System.
COBOL Common Business Oriented Language.
DBMS Database Management System.
EBCDIC Extended Binary Coded Decimal Interchange Code.
HTTP HyperText Transfer Protocol.
IBM International Business Machine.
JPEG Joint Photographic Experts Group.

Transistor-based computer systems were developed in _________ generation of computers.

  1. first
  2. second
  3. third
  4. fourth

Answer (Detailed Solution Below)

Option 2 : second

Computer Awareness Question 8 Detailed Solution

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The correct answer is Second.

Key Points

  • Second-generation computers were based on Transistors instead of vacuum tubes.
  • 1959-1965 is the period of second-generation computers.

Additional Information

  • List of generations of computers:

Generation

Duration Electronic Component Used
First Generation Computers 1946-1954 Vacuum Tubes
Second Generation Computer 1955-1964 Transistors
Third Generation Computer 1964-1977 Integrated Circuits
Fourth Generation Computer 1978 - Present VLSI or Microprocessors
Fifth Generation Computer Present and Future ULSI or Bio-Chips

Which of the following belongs to the category of fourth generation languages?

  1. Machine language
  2. High-level language
  3. Assembly language
  4. Query language

Answer (Detailed Solution Below)

Option 4 : Query language

Computer Awareness Question 9 Detailed Solution

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The correct answer is Query language.

Key Points

The various generations of computers are listed below:

Generation Hardware Language
1st Vacuum Tube Machine Language
2nd Transistor Assembly Language
3rd Integrated Chips High-Level Language e.g - FORTRAN, ALGOL, COBOL, C++, C
4th Very Large Scale Integrated Circuit Very High-Level Languages (Query Language) e.g - SQL, Unix Shell, Oracle etc.
5th  Ultra Large Scale Integration technology Artificial Intelligence Language e.g - OPS5, Mercury etc.

Third generation computers used _______________.

  1. VLSI technique
  2. Transistors
  3. Vacuum tubes
  4. Integrated circuits

Answer (Detailed Solution Below)

Option 4 : Integrated circuits

Computer Awareness Question 10 Detailed Solution

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The correct answer is Integrated circuits.

Key Points

Third Generation (1964-1977):

  • This generation was introduced by the development of a small chip consisting of the capacity of the 300 transistors
  • These Integrated Circuits (IC)s are popularly known as Chips.
  • So it is quite obvious that the size of the computer got further reduced
  • Some of the computers developed during this period were IBM-360, ICL-1900, IBM-370, and VAX-750
  • Higher-level language such as BASIC (Beginners All-purpose Symbolic Instruction Code) was developed during this period​

Additional Information

Generation Duration Electronic Component Used
First Generation Computers 1946 - 1954 Vacuum Tubes
Second Generation Computer 1955 - 1964 Transistors
Third Generation Computer 1964 - 1977 Integrated Circuits
Fourth Generation Computer 1978 - Present VLSI or Microprocessors
Fifth Generation Computer Present and Future ULSI or Bio-Chips

Which function key is used for opening help ?

  1. F1
  2. F2
  3. F4
  4. F3

Answer (Detailed Solution Below)

Option 1 : F1

Computer Awareness Question 11 Detailed Solution

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The correct answer is F1.

Key Points

  1. F1 function key is used for opening help.
  2. ​A function key is a key on a computer keyboard to perform certain actions.
  3. The function keys are arranged on the top of the computer keyboard numbered across from F1 to F12.
  4. The keys are frequently used in combination with other keys such as the CTRL key, the ALT key, and the SHIFT key.
  5. The function keys provide some interesting shortcuts for common computer functions that can be useful tools in everyday computing.

Additional InformationSome of the use of function keys:

Function keys Function
F2 To rename a selected file or folder.
F3 To search for a file or folder.
F4 To close the active window with the Alt key
F5 To refresh or reload the current page.
F6 To move the cursor to the address bar in most web browsers.
F7 To spell-check and grammar check
F8 To access the boot menu in Windows
F9 Refresh a document in MS word
F10 Activate the menu bar of the application 
F11 Enter and exit full screen in web browsers
F12 Open the Save as dialog box in MS word

What is the full form of PNG in the computer image format?

  1. Printable New Graphic
  2. Printable New Graphical
  3. Port Natural Graphics
  4. Portable Network Graphics

Answer (Detailed Solution Below)

Option 4 : Portable Network Graphics

Computer Awareness Question 12 Detailed Solution

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​The correct answer is Portable Network Graphics.

  • Portable Network Graphics is the full form of PNG in the computer image format.

Key Points

  • PNG (Portable Network Graphics) PNG (Portable Network Graphics)
  • PNG is a format for storing bit-mapped or raster images on the computer.
  • PNG is also known as a successor of GIF format images.
  • It uses the less compression technique to save images like GIF files but without copyright issues.
  • It contains a bitmap of indexed color so it is also called a bit-mapped image.
  • Portable Network Graphics Format was developed in early 1995.
  • PNG form was created by a team working under Thomas Boutell.
  • The main reason behind its development was the limitation of 256 colors only in GIF.
  • PNG has a file extension ".png".
  • PNG provides low-resolution images that look good and load quickly.
  • The amount of transparency can be controlled.
  • The format supports interlacing, and it can be developed faster than the GIF format.
  • PNG format also supports Gamma correction.
  • Images can be saved by using true color.
  • It can also be saved by using palette and grayscale formats provided by GIF.

Additional Information 

  • JPEG (or JPG) - Joint Photographic Experts Group.
  • GIF - Graphics Interchange Format.
  • TIFF - Tagged Image File Format.
  • BMP - BitMaP.
  • SVG - Scalable Vector Graphics
  • PSD - Photoshop Document.
  • PDF - Portable Document Format.
  • EPS - Encapsulated Postscript.
  • RAW -Raw Image Formats
  • AI - Adobe Illustrator Document.

Which of the following is considered to be the first supercomputer developed in India?

  1. SAHASRA T
  2. SAGA 220
  3. PARAM YUVA II
  4. PARAM 8000

Answer (Detailed Solution Below)

Option 4 : PARAM 8000

Computer Awareness Question 13 Detailed Solution

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The correct answer is PARAM 8000.

Key Points

  • PARAM 8000 is considered to be the first supercomputer developed in India.
  • PARAM is a series of supercomputers developed by C-DAC in Pune.
  • PARAM supercomputers developed under the leadership of Vijay P Bhatkar.
  • Supercomputers developed by India are EKA, PARAM, Kabru, Blue Gene.
  • Pratyush is India's fastest supercomputer.

Additional Information

  • SAGA 220 is the supercomputer developed by ISRO in 2011.
  • PARAM Yuva II is the fastest in the prestigious PARAM series of Supercomputers built in India.
  • SAHASRA T provides service in the fields of aerospace engineering, meteorology predictions, and astrological simulation.
  • Seymour Cray is considered the father of the supercomputer.
  • CDC 6600 is the world's first supercomputer.

 Important Points

  • As of June 2023, the AIRAWAT supercomputer is the fastest supercomputer in India, having been ranked 75th fastest in the world in the TOP500 supercomputer list.

Which of the following is the shortcut key to open a 'New Blank' document in MS-Word?

  1. CTRL + B
  2. CTRL + N
  3. CTRL + D
  4. CTRL + M

Answer (Detailed Solution Below)

Option 2 : CTRL + N

Computer Awareness Question 14 Detailed Solution

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The correct answer is CTRL + N.

Key Points

  • Create a new document with Ctrl+N. 

Additional Information

  • Basic computer shortcut keys
    • Ctrl + M -- Indent the paragraph.
    • Ctrl + B -- Bold highlighted selection.
    • Ctrl + D -- Font options.
    • Alt + F--File menu options in the current program.
    • Alt + E--Edits options in the current program.
    • F1--Universal help (for any sort of program).
    • Ctrl + A--Selects all text.
    • Ctrl + X--Cuts the selected item.
    • Ctrl + Del--Cut selected item.
    • Ctrl + C--Copy the selected item.
    • Ctrl + Ins-- Copy the selected item.
    • Ctrl + V--Paste the selected item.
    • Shift + Ins -- Paste the selected item.
    • Home -- Takes the user to the beginning of the current line.
    • Ctrl + Home--Go to the beginning of the document.
    • End -- Go to the end of the current line.
    • Ctrl + End -- Go to the end of a document.
    • Shift + Home -- Highlight from the current position to the beginning of the line.
    • Shift + End -- Highlight from the current position to the end of the line.
    • Ctrl + (Left arrow) -- Move one word to the left at a time.
    • Ctrl + (Right arrow) -- Move one word to the right at a time.

Which of the following is the correct full form of JPEG?

  1. Joint Photography Exports Group
  2. Joint Pixel Experts Group
  3. Joint Photographic Experts Group
  4. Joint Pixel Exports Group

Answer (Detailed Solution Below)

Option 3 : Joint Photographic Experts Group

Computer Awareness Question 15 Detailed Solution

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The correct answer is Joint Photographic Experts Group (JPEG).

Key Points

  • JPEG stands for Joint Photographic Experts Group.
  • JPEG is a standard image format for containing lossy and compressed image data.
  • JPEG is a unique compression feature, that allows JPEG files to be used widely on the Internet, Computers, and Mobile Devices.

Additional Information 

  • Some important abbreviations used in Computer:
    • BIOS - Basic Input Output System
    • CAD - Computer-Aided Design
    • EDVAC - Electronic Discrete Variable Automatic Computer
    • EPROM - Erasable Programmable Read-Only Memory
    • FORTRAN - FORmula TRANslation
    • GPRS - General Packet Radio Service 
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