Mastering Parajumbles: Tips, Tricks, and Examples for Competitive Exams

Are you gearing up for RRB exams such as RRB ALP, RRB Technician, or RRB NTPC? Computer Knowledge can greatly impact your exam performance.

To assist you in mastering the Computer section, we've curated the Top 50 Most Important Computer GK Questions frequently asked in various RRB exams. This comprehensive post not only presents essential questions but also provides valuable insights into key topics and effective preparation strategies tailored for competitive success.

Most Asked Computer Topics for RRB Exams

Focusing on the right topics can streamline your preparation and enhance your efficiency. Below is a table highlighting the Most Asked Computer Topics in RRB exams, along with the number of questions (out of the top 50 questions) typically associated with each topic.

Topic	Number of Questions	Key Areas Covered
Networking and Internet	7	Definitions and concepts like URL, ISP, HTTP, FTP, TCP/IP layers, web browsers
Data Storage and Units	6	Understanding data measurement units such as bytes, kilobytes, megabytes, gigabytes, terabytes, petabytes
Supercomputers	4	India's first supercomputers (PARAM 8000, PARAM Ganga, SAGA-220, Pratyush) and their applications
Input Devices	4	Identifying input devices like Track Ball, Mouse, Scanner, OMR
Software Applications	4	Examples and identification of software such as Microsoft Excel, database software, web browsers
Computer History	3	Milestones like ENIAC, inventor of the World Wide Web (Tim Berners-Lee), generations of computers
Operating Systems	3	Examples of operating systems including Unix, MS DOS, Linux distributions (Ubuntu, Mint, Fedora)
Shortcuts and Commands	3	Keyboard shortcuts in Windows (Alt + Tab, Windows + L) and MS-Word (Ctrl + K)
Hardware Components	2	CPU and its constituents (Control Unit, ALU, Memory)
Programming Languages	2	COBOL (Common Business Oriented Language), FORTRAN (Formula Translation)
Number Systems	2	Binary numbers, octal numbers
Memory Hierarchy	2	Cache memory, RAM
Email	2	Structure and format of email addresses
Security	1	Firewall and its role in preventing unauthorized access
Web Technologies	1	HTML as a language for writing web pages
Coding/Character Encoding	1	ASCII (American Standard Code For Information Interchange)

Note: Prepare effectively for RRB exams with this MCQs set of most repeated GK questions from previous RRB exams.

• Top 100 History GK Questions
• Top 100 Geography GK Questions
• Top 100 Indian Polity MCQs
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• Top 100 Physics GK Questions
• Top 100 Biology GK Questions
• Top 100 Chemistry GK Questions
• 50 Essential Computer GK Questions

Top 50 Computer GK Questions for Railway Exams

Practice Show All Answers

Q1: 1 gigabyte equals to:

A. 1024 megabytes

B. 2048 megabytes

C. 1000 gigabytes

D. 1000 megabytes

In computer storage, 1 gigabyte (GB) is equal to 1024 megabytes (MB) based on the binary system used by computers. This distinction is crucial for competitive exams as it tests the fundamental understanding of data measurement units.

Q2: One kilobyte is equal to:

A. 512 bytes

B. 2048 bytes

C. 1024 bytes

D. 1000 bytes

One kilobyte (KB) is equal to 1024 bytes in the binary system used by computers. Knowing the correct binary multiples is essential for various computer-related competitive exams.

Q3: ENIAC, the first electronic digital programmable computer device (1943), stands for:

A. Electronic Numerical Integrator and Computer

B. Electronic Network Interface and Control

C. Enhanced Numerical Integrator and Controller

D. Electronic Numerical Information Calculator

ENIAC stands for Electronic Numerical Integrator and Computer. It was the first electronic general-purpose digital computer, marking a significant milestone in computing history, which is a common topic in competitive exams.

Q4: Which is India’s first supercomputer?

A. Pratyush

B. PARAM 8000

C. SAGA-220

D. PARAM Ganga

PARAM 8000 is recognized as India’s first supercomputer. Understanding the history and development of supercomputers is often tested in computer awareness sections of competitive exams.

Q5: The first ‘made in India’ Petascale Supercomputer deployed at IIT Roorkee under the National Supercomputing Mission (NSM) in March 2022, has a supercomputing capacity of 1.66 Petaflops. What is its name?

A. PARAM Ganga

B. PARAM 8000

C. SAGA-220

D. Pratyush

PARAM Ganga is the first ‘made in India’ Petascale Supercomputer deployed at IIT Roorkee with a capacity of 1.66 Petaflops. This advancement showcases India’s progress in high-performance computing, a key area in competitive exams.

Q6: Which part of the computer is called its brain?

A. GPU

B. Motherboard

C. CPU

D. RAM

The Central Processing Unit (CPU) is often referred to as the brain of the computer because it handles instructions and processes data. This analogy is fundamental knowledge for computer awareness in competitive exams.

Q7: Which keyboard shortcut is used in a Windows 10 system to switch between open applications?

A. Windows + Tab

B. Ctrl + Shift

C. Ctrl + Alt

D. Alt + Tab

Alt + Tab is the keyboard shortcut used in Windows 10 to switch between open applications. Familiarity with such shortcuts is beneficial for computer proficiency sections in competitive examinations.

Q8: In the domain of computers and the internet, what is the full form of URL?

A. Unified Resource Link

B. Universal Resource Locator

C. Uniform Resource Locator

D. Uniform Retrieval Locator

URL stands for Uniform Resource Locator, which is the address used to access resources on the internet. Understanding common internet terminology is essential for computer awareness in competitive exams.

Q9: A Firewall is a system designed to:

A. Manage software installations

B. Prevent unauthorized access to or from a private network

C. Enhance computer speed

D. Store large amounts of data

A Firewall is a security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules, thereby preventing unauthorized access to or from a private network. This concept is fundamental in computer security topics for competitive exams.

Q10: What is the full form of COBOL?

A. Central Business Operations Language

B. Computer-Based Operating Language

C. Common Binary Operational Language

D. Common Business Oriented Language

COBOL stands for Common Business Oriented Language. It is one of the oldest programming languages, primarily used in business, finance, and administrative systems for companies and governments, a topic often covered in computer awareness sections of competitive exams.

Q11: What is the binary representation of 73?

A. 1010010

B. 1000111

C. 1001001

D. 1101001

The binary representation of the decimal number 73 is 1001001. Understanding binary numbers is crucial for computer science topics in competitive examinations.

Q12: ASCII is a code for representing English characters as numbers. It is the acronym for:

A. American Standard Code For Information Interchange

B. American System Code For Information Integration

C. Advanced Standard Code For Information Interchange

D. Automated Standard Code For Information Integration

ASCII stands for American Standard Code For Information Interchange. It is a character encoding standard for electronic communication, representing text in computers and other devices. This is a key concept in computer fundamentals for competitive exams.

Q13: In which generation were computers bulky, vacuum based and costly?

A. Fourth Generation

B. Third Generation

C. First Generation

D. Second Generation

The first generation of computers (1940s-1950s) were characterized by their bulky size, use of vacuum tubes, and high cost. Understanding the evolution of computer generations is important for computer awareness sections in competitive exams.

Q14: SAGA-220 was developed by Indian Space Research Organization. What is SAGA-220?

A. A supercomputer

B. A space shuttle

C. A communication system

D. A satellite

SAGA-220 is a supercomputer developed by the Indian Space Research Organization (ISRO). It highlights India's advancements in supercomputing technology, a relevant topic for competitive examinations.

Q15: For which purpose is India’s fastest and most powerful first multi-PetaFlops supercomputer “Pratyush” used?

A. Weather forecasting and climate predictions

B. Financial modeling

C. Military simulations

D. Space exploration

Pratyush is India's fastest and most powerful first multi-PetaFlops supercomputer used primarily for weather forecasting and climate predictions. This application is significant in understanding the practical uses of supercomputers in competitive exams.

Q16: What are the three constituents of CPU in a computer?

A. GPU, cache, storage

B. Control unit, ALU, memory

C. ALU, RAM, motherboard

D. Control unit, GPU, cache

The CPU consists of the Control Unit (CU), Arithmetic Logic Unit (ALU), and memory. These components work together to execute instructions and process data, a fundamental concept in computer architecture for competitive exams.

Q17: “Track Ball” falls into which category?

A. Output Device

B. Processing Device

C. Input Device

D. Storage Device

A Track Ball is an input device used to control the movement of the cursor on a computer screen. Recognizing various input devices is essential for computer awareness sections in competitive examinations.

Q18: Mouse and Scanner are examples of:

A. Output Devices

B. Input Devices

C. Storage Devices

D. Processing Devices

Both Mouse and Scanner are input devices used to provide data and control signals to the computer. Identifying different types of input devices is a common topic in computer awareness for competitive exams.

Q19: In source data entry devices, what is the full form of OMR?

A. Optical Memory Recognition

B. Optical Mark Recognition

C. Optical Media Reader

D. Optical Motion Resolver

OMR stands for Optical Mark Recognition, a technology used to detect marks on paper, such as in multiple-choice exams. Understanding OMR is important for computer-related sections in competitive exams.

Q20: What is the use of output devices?

A. To store data permanently

B. To view or print data

C. To input data into the computer

D. To process data

Output devices are used to view or print data processed by the computer, such as monitors and printers. Differentiating between input and output devices is fundamental knowledge for competitive exams.

Q21: Which of the following is NOT an output device? 1) Monitor 2) Speaker 3) Scanner 4) Printer.

A. Scanner

B. Speaker

C. Printer

D. Monitor

Scanner is an input device, not an output device. Monitor, Speaker, and Printer are all output devices used to display or produce data from the computer. This distinction is frequently tested in computer awareness sections of competitive exams.

Q22: Printer is an output device in a computer.

A. True

B. False

C. It can be both input and output device

D. Only in specific configurations

A Printer is solely an output device used to produce a hard copy of digital documents. Understanding the role of different peripherals is essential for computer awareness in competitive examinations.

Q23: Which of the following is NOT an input device? 1) Touch Screen 2) Plotter 3) Light pen 4) Track ball.

A. Light pen

B. Plotter

C. Track ball

D. Touch Screen

Plotter is an output device used for printing vector graphics. Touch Screen, Light pen, and Track ball are all input devices. Recognizing the functions of various devices is important for competitive exams.

Q24: What works as a buffer between CPU and main memory to prevent the processor from having to wait for a program and data from main memory?

A. RAM

B. Cache memory

C. Hard disk

D. GPU

Cache memory acts as a buffer between the CPU and main memory (RAM), storing frequently accessed data to speed up processing and reduce wait times. Understanding memory hierarchy is crucial for computer awareness sections in competitive exams.

Q25: Which is the primary memory of a computer?

A. SSD

B. USB Drive

C. RAM

D. Hard Disk

RAM (Random Access Memory) is considered the primary memory of a computer, used for storing data that is actively being used or processed by the CPU. Differentiating between primary and secondary memory is a key topic in competitive exams.

Q26: A hard disk is an example of which type of data storage device?

A. Tertiary storage

B. Cache storage

C. Secondary storage

D. Primary storage

A hard disk is classified as a secondary storage device, used for permanent data storage. Understanding the different types of storage devices and their classifications is important for computer awareness in competitive examinations.

Q27: 10 nibbles are equal to:

A. 40 bits

B. 80 bits

C. 20 bits

D. 10 bytes

One nibble consists of 4 bits. Therefore, 10 nibbles equal 40 bits (10 x 4 = 40). This basic knowledge of data units is often tested in computer awareness sections of competitive exams.

Q28: 1 terabyte is equal to:

A. 1024 GB

B. 1000 MB

C. 1000 GB

D. 1024 MB

1 terabyte (TB) is equal to 1024 gigabytes (GB) in the binary system used by computers. Understanding the hierarchy of data storage units is essential for competitive exams.

Q29: Which is the largest unit of memory? 1) Petabyte 2) Gigabyte 3) Terabyte 4) Megabyte.

A. Petabyte

B. Terabyte

C. Megabyte

D. Gigabyte

Among the listed options, Petabyte is the largest unit of memory, where 1 Petabyte equals 1024 Terabytes. Recognizing the scale of data units is important for computer awareness in competitive exams.

Q30: An interface between the human user and the computer hardware is known as:

A. BIOS

B. Operating System

C. Middleware

D. Firmware

The operating system serves as the interface between the user and the computer hardware, managing resources and providing services for computer programs. This fundamental concept is frequently tested in competitive examinations.

Q31: Which keyboard shortcut is used to lock your PC in a Windows 10 operating system?

A. Windows logo key + L

B. Ctrl + L

C. Windows logo key + Ctrl

D. Alt + L

Pressing the Windows logo key + L locks your PC in Windows 10, securing your session. Familiarity with such shortcuts is beneficial for computer proficiency sections in competitive exams.

Q32: Unix, MS DOS, Linux are examples of:

A. Operating Systems

B. Brands of Printers

C. Computers

D. Types of Storage Devices

Unix, MS DOS, and Linux are all operating systems that manage computer hardware and software resources. Understanding different operating systems is a key topic in computer awareness for competitive exams.

Q33: Ubuntu, Mint and Fedora are versions of:

A. Windows 10

B. MS DOS

C. Linux

D. Apple MAC OS X

Ubuntu, Mint, and Fedora are all distributions (versions) of the Linux operating system. Recognizing various Linux distributions is important for computer awareness sections in competitive examinations.

Q34: A high-level source program must be translated first into a form that the machine can understand. This is done using a software called the:

A. Interpreter

B. Compiler

C. Linker

D. Assembler

A compiler translates high-level programming languages into machine code that the computer can execute. Understanding the roles of different programming tools is essential for competitive exams.

Q35: Microsoft Excel is an example of a:

A. Spreadsheet

B. Presentation Software

C. Word Processor

D. Database Management System

Microsoft Excel is a spreadsheet application used for data analysis, calculations, and visualization. Identifying different types of software applications is a common topic in computer awareness sections of competitive exams.

Q36: Which of the following is NOT a database software used on computers? 1) FoxPro 2) MS Word 3) MS Access 4) Oracle.

A. FoxPro

B. MS Access

C. Oracle

D. MS Word

MS Word is a word processing software, not a database management system. FoxPro, MS Access, and Oracle are all database software used to store and manage data. This distinction is frequently tested in competitive exams.

Q37: What is the shortcut key to open the ‘Insert Hyperlink’ dialog box in MS-Word?

A. Ctrl + I

B. Ctrl + H

C. Ctrl + K

D. Ctrl + L

Pressing Ctrl + K in MS-Word opens the ‘Insert Hyperlink’ dialog box, allowing users to add hyperlinks to their documents. Knowing such shortcuts enhances computer proficiency, a useful skill for competitive examinations.

Q38: What is URL?

A. A hardware component

B. A type of computer virus

C. A programming language

D. Address of the web page displayed on the internet

URL stands for Uniform Resource Locator and refers to the address used to access web pages on the internet. Understanding internet terminology is essential for computer awareness sections in competitive exams.

Q39: In Telecom field, ISP stands for:

A. Internal Service Provider

B. Information Security Protocol

C. Internet Service Provider

D. International Service Protocol

ISP stands for Internet Service Provider, which is a company that provides individuals and organizations access to the internet. Recognizing common acronyms is important for computer awareness in competitive examinations.

Q40: HTTP stands for:

A. Hyper Text Transfer Protocol

B. High Text Transfer Protocol

C. Hyperlink Transfer Text Protocol

D. High Transmission Text Protocol

HTTP stands for Hyper Text Transfer Protocol, which is the foundation of data communication on the World Wide Web. Understanding internet protocols is a key topic in computer awareness for competitive exams.

Q41: Which internet protocol allows us to access the data over the World Wide Web?

A. FTP

B. HTTP

C. IP

D. SMTP

HTTP (Hyper Text Transfer Protocol) is the protocol used for transmitting data over the World Wide Web. Recognizing the functions of various internet protocols is essential for competitive exams.

Q42: Which of the following is NOT a layer of the TCP/IP protocol? 1) Internet layer 2) Presentation layer 3) Transport layer 4) Application layer.

A. Transport layer

B. Internet layer

C. Presentation layer

D. Application layer

The TCP/IP model consists of four layers: Application, Transport, Internet, and Network Interface. The Presentation layer is part of the OSI model, not the TCP/IP model. This distinction is important for computer awareness sections in competitive exams.

Q43: What is the full form of FTP?

A. File Transmission Protocol

B. File Transfer Protocol

C. Fast Transmission Process

D. Fast Transfer Process

FTP stands for File Transfer Protocol, which is used to transfer files between a client and a server on a computer network. Understanding common internet protocols is essential for computer awareness in competitive examinations.

Q44: Which is not a web browser from the following? 1) Google | 2) Safari | 3) Mozilla Firefox | 4) Opera.

A. Opera

B. Safari

C. Google

D. Mozilla Firefox

Google is not a web browser; it is a search engine and a technology company. The web browsers among the options are Safari, Mozilla Firefox, and Opera. Recognizing different types of software is important for competitive exams.

Q45: Who invented the World Wide Web?

A. Tim Berners-Lee

B. Mark Zuckerberg

C. Bill Gates

D. Steve Jobs

Tim Berners-Lee invented the World Wide Web in 1989, revolutionizing the way information is shared and accessed globally. This historical fact is commonly tested in computer awareness sections of competitive exams.

Q46: E-mail address is made up of:

A. Four parts (Username, Domain, Extension, and Port)

B. One part (Username)

C. Two parts (Username and Domain name separated by @)

D. Three parts (Username, Domain name, and Extension)

An email address consists of two main parts: the Username and the Domain name, separated by the "@" symbol (e.g., user@example.com). Understanding the structure of email addresses is essential for computer awareness in competitive examinations.

Q47: Which of the following is a correct format of an Email address? 1) www.nameofwebsite.com 2) name@website#info 3) name@website.com 4) name.website..com.

A. name@website.com

B. www.nameofwebsite.com

C. name.website..com

D. name@website#info

The correct format of an email address is "name@website.com". The other options contain invalid characters or incorrect structures. Recognizing valid email formats is important for computer awareness sections in competitive exams.

Q48: In the computer field, FORTRAN stands for:

A. Formal Transfer Language

B. Formula Transfer Language

C. Forward Translation

D. Formula Translation

FORTRAN stands for Formula Translation. It is one of the oldest high-level programming languages, primarily used for scientific and engineering calculations. Understanding programming language acronyms is essential for competitive exams.

Q49: In which language can a web page be written?

A. Java

B. HTML

C. Python

D. C++

HTML (HyperText Markup Language) is the standard language used to create and design web pages. Recognizing web development languages is important for computer awareness sections in competitive examinations.

Q50: Numbers that are written with base 8 are classified as:

A. Decimal numbers

B. Hexadecimal numbers

C. Binary numbers

D. Octal numbers

Numbers written with base 8 are called Octal numbers. Understanding different numerical bases is a fundamental concept in computer science, often tested in competitive exams.

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Understanding these topics and their key areas can significantly enhance your preparation for RRB Computer Awareness sections. And practicing these top 50 questions, you'll be well-prepared to tackle the Computer Awareness section with confidence. Remember to maintain a disciplined study schedule, utilize high-quality resources, and regularly evaluate your progress through mock tests.

Computer Awareness Chapters: Learn Key Concepts with MCQs
General Introduction to Computers Input and Output Devices Personal Computer Data Representation and Number System Data Communication Microsoft Windows	Development of Computers Computer Memory Design Tools and Programming Languages Computer Software Internet Technology Microsoft Office

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