- When is the output of an AND gate 1?
- Any one input is 1
- Both inputs are 1
- Both inputs are 0
- The inputs differ
Show answer
Answer: (B) Both inputs are 1
AND = true only if both are true.
Read the full chapter in mind-map notes → - The OS first developed by Microsoft —
- Windows ME
- Windows NT
- Windows 97
- MS-DOS
- Tools like password crackers and wardialers are linked with which activity?
- Scanning photos
- Archiving
- Cracking
- Defragmenting
Show answer
Answer: (C) Cracking
These are cracking tools.
Read the full chapter in mind-map notes → - What does DVD stand for?
- Digital Video Developer
- Digital Video Device
- Digital Video Disc
- None of these
Show answer
Answer: (C) Digital Video Disc
Digital Video/Versatile Disc.
Read the full chapter in mind-map notes → - Where does a computer check a username and password for a match?
- Website
- Network
- Backup file
- Database
- Which software is used to make a slide presentation?
- Microsoft Word
- Microsoft Excel
- Microsoft PowerPoint
- Microsoft Access
- What is the binary form of decimal 37?
- 101001
- 100111
- 100101
- 100000
Show answer
Answer: (C) 100101
Divide by 2 and read the remainders bottom to top.
Read the full chapter in mind-map notes → - Pick the term for this: A point where a network branch ends or where two or more branches meet.
- FTP
- Internet
- Node
- Server
Show answer
Answer: (C) Node
Node: A point where a network branch ends or where two or more branches meet.
Read the full chapter in mind-map notes → - Keys that take you to the first cell of the row —
- Tab
- Shift + Tab
- Esc + Home
- Shift + Home
- Who first put forward the idea of the quantum computer?
- John Napier
- Richard Feynman
- Seymour Cray
- Howard Aiken
Show answer
Answer: (B) Richard Feynman
Richard Feynman put forward this idea based on quantum mechanics.
Read the full chapter in mind-map notes →
- Among the nine features, what is “a new hardware setting itself up as soon as it is added”?
- Automation
- Plug and play
- Secrecy
- Versatility
Show answer
Answer: (B) Plug and play
This is plug and play. Automation means finishing a job by itself once instructions are given.
Read the full chapter in mind-map notes → - The virus that erases information in files and makes them useless —
- Overwrite virus
- Resident virus
- Macro virus
- FAT virus
Show answer
Answer: (A) Overwrite virus
Way and Trj.Reboot are examples.
Read the full chapter in mind-map notes → - Which button works as the “middle button”?
- Right button
- Scroll wheel
- Touch bar
- Left button
Show answer
Answer: (B) Scroll wheel
The scroll wheel acts as a third button when pressed.
Read the full chapter in mind-map notes → - The technology that secures information resources with a fingerprint, eye or voice print —
- Caves
- Haptics
- Biometrics
- RFID
Show answer
Answer: (C) Biometrics
Haptics is touch feedback; RFID is a radio tag.
Read the full chapter in mind-map notes → - A network whose elements are far apart, with dedicated high-speed phone lines —
- LAN
- WAN
- URL
- World Wide Web
- The appropriate method to shut the computer down —
- Click Start then Shut down
- Click Start then Restart
- Click Start then Switch user
- Switch off the monitor
Show answer
Answer: (A) Click Start then Shut down
Start → Shut down.
Read the full chapter in mind-map notes → - Which is another name for computer security?
- Data mining
- Cyber security
- Web designing
- Network topology
Show answer
Answer: (B) Cyber security
It is also called IT security; it is a branch of information security.
Read the full chapter in mind-map notes → - Which short form stands for “DVD-Read Only Memory”?
- QDR
- DVD-ROM
- PSU
- GPU
Show answer
Answer: (B) DVD-ROM
DVD-ROM = DVD-Read Only Memory — A read-only DVD.
Read the full chapter in mind-map notes → - From which language does the word computer come?
- Greek
- English
- Hindi
- Latin
Show answer
Answer: (D) Latin
It comes from the Latin computare (to calculate).
Read the full chapter in mind-map notes → - Which short form stands for “Video Graphics Array”?
- LCD
- VGA
- CG
- WMA
Show answer
Answer: (B) VGA
VGA = Video Graphics Array — The standard graphics interface of monitors.
Read the full chapter in mind-map notes →
- What is virtual memory?
- An extremely large main memory
- An extremely large secondary memory
- An illusion of an extremely large main memory
- A memory used in supercomputers
Show answer
Answer: (C) An illusion of an extremely large main memory
It creates the illusion of more addresses than physically exist.
Read the full chapter in mind-map notes → - A small program hidden inside a GIF image —
- Web bug
- Cookie
- Spyware application
- Spam
- The view for creating a table and setting keys —
- Design View
- Datasheet View
- Print View
- Layout View
- The translator program used for assembly language —
- Compiler
- Interpreter
- Translation
- Assembler
- What kind of software is Outlook?
- E-mail client + personal information manager
- Spreadsheet
- Database
- Presentation
Show answer
Answer: (A) E-mail client + personal information manager
An e-mail client.
Read the full chapter in mind-map notes → - The full form of CAD —
- Computer Applied Design
- Computer Algorithm and Design
- Computer Application Design
- Computer Aided Design
Show answer
Answer: (D) Computer Aided Design
CAD = Computer Aided Design.
Read the full chapter in mind-map notes → - When a monitor’s resolution goes up, its pixels become —
- Larger
- Further apart
- Closer together
- Less clear
Show answer
Answer: (C) Closer together
Densely packed pixels mean higher resolution.
Read the full chapter in mind-map notes → - Pick the expansion of “MSN”.
- Universal Automatic Computer
- International Business Machine
- Bharat Sanchar Nigam Limited
- Microsoft Network
Show answer
Answer: (D) Microsoft Network
MSN = Microsoft Network — Microsoft’s online service.
Read the full chapter in mind-map notes → - When is an OS called multi-user?
- More than one program runs at once
- More than one user can work at once
- Either (1) or (2)
- None
Show answer
Answer: (B) More than one user can work at once
Many programs = multitasking.
Read the full chapter in mind-map notes → - To print data based on queries or tables —
- Table
- Report
- Form
- Macro
- Which software is used for calculation and accounts work?
- Letter writing
- Spreadsheet
- Presentation
- Painting
Show answer
Answer: (B) Spreadsheet
Accounts are done in a spreadsheet.
Read the full chapter in mind-map notes → - Pick the term for this: Encoding messages or information so hackers cannot read it but authorised users can.
- Malware
- Cryptography
- Computer Worm
- Encryption
Show answer
Answer: (D) Encryption
Encryption: Encoding messages or information so hackers cannot read it but authorised users can.
Read the full chapter in mind-map notes → - In decimal→binary, the last remainder is called —
- LSB
- MSB
- Sign bit
- Parity bit
Show answer
Answer: (B) MSB
The last remainder = Most Significant Bit.
Read the full chapter in mind-map notes → - What is a fault in a program named —
- Bug
- Debug
- Virus
- Noise
- Pick the term for this: The written form (printed or stored) of the instructions as the programmer wrote them.
- Kernel
- Source Code
- Upgrade
- Freeware
Show answer
Answer: (B) Source Code
Source Code: The written form (printed or stored) of the instructions as the programmer wrote them.
Read the full chapter in mind-map notes → - What is the horizontal ruler used to set?
- Top and bottom margins
- Left and right margins
- Font
- Colour
Show answer
Answer: (B) Left and right margins
Width and the left-right margins.
Read the full chapter in mind-map notes → - The shortcut that inserts a new slide —
- Ctrl + N
- Ctrl + M
- Ctrl + O
- Ctrl + T
- What is called the brain of the computer?
- Keyboard
- Mouse
- CPU
- Printer
Show answer
Answer: (C) CPU
The CPU controls all devices and does the calculations.
Read the full chapter in mind-map notes → - Which parameter represents the size of the memory?
- Storage capacity
- Access mode
- Access time
- Permanence
Show answer
Answer: (A) Storage capacity
Capacity tells the size of memory, in words or bytes.
Read the full chapter in mind-map notes → - Which language does the microprocessor understand directly?
- Only machine language
- Both machine and high-level
- Only high-level
- None
Show answer
Answer: (A) Only machine language
0s and 1s are its language.
Read the full chapter in mind-map notes →
- Which material is an IC (chip) made of?
- Copper
- Silicon
- Gold
- Silver
Show answer
Answer: (B) Silicon
An IC is a complete circuit built on a small silicon chip.
Read the full chapter in mind-map notes → - The correct small-to-large order of units —
- PB, KB, MB, GB, TB
- KB, MB, TB, PB, GB
- MB, TB, GB, KB, PB
- KB, MB, GB, TB, PB
Show answer
Answer: (D) KB, MB, GB, TB, PB
K → M → G → T → P.
Read the full chapter in mind-map notes → - Which key is held down to select several separate cells together?
- Ctrl + Shift
- Shift
- Alt
- Ctrl
Show answer
Answer: (D) Ctrl
Shift selects a continuous area.
Read the full chapter in mind-map notes → - Pick the term for this: The RAM type that stores each bit in a separate capacitor.
- Archive
- Sector
- Gigabyte (GB)
- Dynamic RAM (DRAM)
Show answer
Answer: (D) Dynamic RAM (DRAM)
Dynamic RAM (DRAM): The RAM type that stores each bit in a separate capacitor.
Read the full chapter in mind-map notes → - Where would you put a header or footer meant for handouts —
- Title master
- Slide master
- Handout master
- All of these
Show answer
Answer: (C) Handout master
The handout master.
Read the full chapter in mind-map notes → - MS-DOS commands that need external files to perform —
- Internal
- External
- Batch
- Redirectories
- Which computer, first built for CAD calculations and now used as a server?
- Micro
- Super
- Mini
- Palmtop
Show answer
Answer: (C) Mini
The minicomputer was built for engineering and CAD, and is now the server.
Read the full chapter in mind-map notes → - Which language is CPU dependent?
- C
- Assembly
- Java
- All except Java
Show answer
Answer: (B) Assembly
Assembly is machine dependent.
Read the full chapter in mind-map notes → - Compared with SRAM, DRAM is —
- More power, faster
- More power, slower
- Less power, slower
- Less power, faster
Show answer
Answer: (C) Less power, slower
DRAM is slower and cheaper.
Read the full chapter in mind-map notes → - The technique to send several calls over one line —
- Infrared transmission
- Digitising
- Streaming
- Multiplexing
Show answer
Answer: (D) Multiplexing
Multiplexing combines many signals onto one medium.
Read the full chapter in mind-map notes →
- In which topology is every node connected to two other nodes?
- Bus
- Ring
- Star
- Mesh
- ALGOL is short for —
- Programming Language 1
- Visual Basic
- Relational Database Management System
- Algorithmic Language
Show answer
Answer: (D) Algorithmic Language
ALGOL = Algorithmic Language — An early high-level language for writing algorithms.
Read the full chapter in mind-map notes → - Which of these is a means of personal communication on the Internet?
- Plotter
- Instant messaging
- Pie chart
- Slide show
Show answer
Answer: (B) Instant messaging
Chat, instant messaging and e-mail are means of communication.
Read the full chapter in mind-map notes → - What does NT mean in Windows NT —
- New Terminology
- New Technique
- New Technology
- Normal Technique
Show answer
Answer: (C) New Technology
NT = New Technology.
Read the full chapter in mind-map notes → - What is the CPU’s internal memory really?
- A set of registers
- A set of ALUs
- Bus
- Microprocessor
Show answer
Answer: (A) A set of registers
Registers are the fastest memory inside the CPU.
Read the full chapter in mind-map notes → - Four people in three cities hold a room-like meeting through cameras and mics. This service is —
- Webmail
- Video conferencing
- E-shopping
- Podcasting
Show answer
Answer: (B) Video conferencing
Each site needs a computer, camera, mic, screen and sound system.
Read the full chapter in mind-map notes → - HTTP is short for —
- Uniform Resource Locator
- Global System for Mobile communication
- HyperText Transfer Protocol
- Password Authentication Protocol
Show answer
Answer: (C) HyperText Transfer Protocol
HTTP = HyperText Transfer Protocol — The protocol to fetch web pages.
Read the full chapter in mind-map notes → - Which one is described as a “network of networks”?
- A website
- A browser
- The Internet
- An e-mail account
Show answer
Answer: (C) The Internet
The Internet is a joined-up form of countless private and public networks.
Read the full chapter in mind-map notes → - Between SRAM and DRAM, which is faster?
- Both equal
- Cannot be said
- SRAM
- DRAM
Show answer
Answer: (C) SRAM
SRAM needs no repeated refreshing.
Read the full chapter in mind-map notes → - Which language is used for business applications?
- LOGO
- COBOL
- BASIC
- FORTRAN
Show answer
Answer: (B) COBOL
COBOL = Common Business Oriented Language.
Read the full chapter in mind-map notes →
- Which was the first electromechanical machine, built for the 1890 census?
- UNIVAC
- Tabulating Machine
- EDSAC
- IBM-650
Show answer
Answer: (B) Tabulating Machine
It was made by Herman Hollerith.
Read the full chapter in mind-map notes → - The technology for phone-like talk over an IP network —
- VoIP
- DNS
- HTML
- URL
Show answer
Answer: (A) VoIP
VoIP = Voice over Internet Protocol.
Read the full chapter in mind-map notes → - What are the intangible instructions that tell a computer what to do called?
- Hardware
- Software
- Storage
- Input/output
Show answer
Answer: (B) Software
A set of instructions is software.
Read the full chapter in mind-map notes → - Which is not a property of fibre optic cabling?
- Faster than copper
- Easier to capture a signal than from copper
- Very resistant to interference
- Carries signals as light waves
Show answer
Answer: (B) Easier to capture a signal than from copper
It is hard to tap fibre.
Read the full chapter in mind-map notes → - Which bus contains the read/write line?
- Data bus
- Control bus
- Address bus
- CPU bus
Show answer
Answer: (B) Control bus
The read/write command runs on the control bus.
Read the full chapter in mind-map notes → - The best view for setting transition effects for all slides —
- Slide sorter view
- Notes page view
- Slide view
- Outline view
- The extension of an Excel file —
- .xis
- .xas
- .xlsx
- .lxs
- Which group of the Insert tab holds the Header and Footer buttons of PowerPoint?
- Illustrations
- Object
- Insert
- Text
- Binary form of hex 7F —
- 11110111
- 01111111
- 01111110
- 11111110
- Files split into small scattered pieces on a disk are described as —
- Fragmented
- Contiguous
- Sectored
- Disbursed
Show answer
Answer: (A) Fragmented
Scattered = fragmented.
Read the full chapter in mind-map notes →
- The commonly quoted expansion of VIRUS —
- Virtual Internet Resource Under Scan
- Valuable Information Record Under Security
- Vital Information Resources Under Siege
- Very Important Resource Under Search
Show answer
Answer: (C) Vital Information Resources Under Siege
It is really a playful back-formed expansion, but exams use it.
Read the full chapter in mind-map notes → - A written description of a program’s functions —
- Explanatory instructions
- GUI
- Plug and play
- Documentation
- An invalid type of database key —
- Structured primary key
- Atomic primary key
- Primary key
- Composite primary key
Show answer
Answer: (A) Structured primary key
Structured is invalid.
Read the full chapter in mind-map notes → - A part of a computer that you can see and touch is called what?
- Software
- Peripheral
- Storage
- Hardware
Show answer
Answer: (D) Hardware
Anything physical that you can see and touch is hardware.
Read the full chapter in mind-map notes → - Which process checks that the components are connected and operating properly?
- Booting
- Processing
- Saving
- Editing
Show answer
Answer: (A) Booting
Booting includes checks and loading of the OS.
Read the full chapter in mind-map notes → - How many number systems are commonly used with computers?
- One
- Two
- Three
- Four (binary, decimal, octal, hex)
Show answer
Answer: (D) Four (binary, decimal, octal, hex)
Binary, decimal, octal and hexadecimal.
Read the full chapter in mind-map notes → - Which shortcut widens the line spacing —
- Ctrl + L
- Ctrl + E
- Ctrl + I
- Ctrl + 5
- How is data arranged in a spreadsheet?
- Lines and spaces
- Layers and planes
- Height and width
- Rows and columns
Show answer
Answer: (D) Rows and columns
Rows and columns.
Read the full chapter in mind-map notes → - The booklet that tells how to use a software program —
- Programming
- User / documentation manual
- Technical
- Designer
Show answer
Answer: (B) User / documentation manual
It is the documentation or user manual.
Read the full chapter in mind-map notes → - Shifting every letter of “HELLO” three places ahead gives —
- IFMMP
- LIPPS
- KHOOR
- EBIIL
- Sending data between two or more computers over communication links is called —
- Communication
- Networking
- Data communication
- Data networking
Show answer
Answer: (C) Data communication
Data communication.
Read the full chapter in mind-map notes → - The background of the screen is known as —
- Application
- Window
- Desktop
- Frame
- The one that loads and relocates an executable program in memory —
- Loader
- Linker
- Translator
- Presentation software
- In which chart can only one data series be plotted?
- Pie
- Line
- Bar
- Column
- Under which ribbon tab do you find the spelling check of Word?
- File
- Home
- Insert
- Review
- Microsoft Office was developed by whom, in which decade?
- Microsoft Inc, 1970s
- Microsoft Inc, 1980s
- Sun Microsystems, 1980s
- Sun Microsystems, 1970s
Show answer
Answer: (B) Microsoft Inc, 1980s
Microsoft, in the 1980s.
Read the full chapter in mind-map notes → - What does a command like DIR TOOL?.bas do?
- Lists one named file
- Lists a group of files (“?” stands for one character)
- Deletes a file
- Copies a file
Show answer
Answer: (B) Lists a group of files (“?” stands for one character)
The “?” is a wildcard.
Read the full chapter in mind-map notes → - The drawback of a DBMS —
- Improvement in data
- Backup and recovery
- Complexity
- Maintenance of data integrity
- What does DMA stand for?
- Direct Memory Access
- Dynamic Memory Access
- Direct Metho Access
- Double Memory Access
Show answer
Answer: (A) Direct Memory Access
In DMA the I/O device skips the CPU and uses memory directly.
Read the full chapter in mind-map notes → - What does the TODAY( ) function enter?
- System time
- Date and time
- The date only
- The time the file was opened
- Which memory keeps its information even after the power is switched off?
- RAM
- ROM
- Cache
- Register
Show answer
Answer: (B) ROM
ROM is non-volatile; the other three empty out as soon as power goes.
Read the full chapter in mind-map notes → - A small message passed from one station to another in networks —
- Token
- Byte
- Word
- Ring
- How many primary keys can an MS-Access table have?
- One
- Two
- Three
- Four
- The rows of a relation are called —
- Relations
- Tuples
- Data structure
- Entity
- Which device makes large construction plans and blueprints?
- Printer
- Plotter
- MICR
- OCR
Show answer
Answer: (B) Plotter
A plotter draws vector pictures with pen-like tools.
Read the full chapter in mind-map notes → - Which device works at the physical layer —
- Bridge
- Router
- Repeater
- All of these
- What should be set up in a network to share one broadband connection among several computers?
- Router
- Node
- Cable only
- Monitor
Show answer
Answer: (A) Router
The modem brings the connection; the router shares it.
Read the full chapter in mind-map notes → - Which menu is used to cut, copy and paste?
- File
- Tools
- Special
- Edit
- When an object is embedded in a document —
- It becomes a part of the document
- It remains outside but loads with the document
- Both become a zip file
- Both (1) and (2)
Show answer
Answer: (A) It becomes a part of the document
Embedded = a part.
Read the full chapter in mind-map notes → - Which terminal can be programmed by the user?
- Dumb terminal
- VDT
- Smart terminal
- Intelligent terminal
Show answer
Answer: (D) Intelligent terminal
The intelligent terminal is programmable.
Read the full chapter in mind-map notes →
GK question sets
FAQs
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This page lists GK questions and answers chapter by chapter — history, geography, polity, economy, science, computer and current affairs. Tap "Show answer" under any question for the answer and explanation.
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Yes, every question and answer is free. Full mind-map notes and short tricks for each chapter are available on the site.
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A fresh set is published daily — see "Today's 20 GK questions" above, or open the 10, 50 and 100 question sets.
Which exams are these questions useful for?
SSC, Railway (RRB NTPC), Banking, state PSC and all government exams that test general knowledge.