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Computer GK

The document contains a series of multiple-choice questions (MCQs) related to computer knowledge, specifically designed for the RRB NTPC 2025 exam. Key topics include functions of CPU, operating systems, data transfer protocols, and keyboard shortcuts. Each question is followed by the correct answer and brief explanations of the concepts involved.

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0% found this document useful (0 votes)
5 views56 pages

Computer GK

The document contains a series of multiple-choice questions (MCQs) related to computer knowledge, specifically designed for the RRB NTPC 2025 exam. Key topics include functions of CPU, operating systems, data transfer protocols, and keyboard shortcuts. Each question is followed by the correct answer and brief explanations of the concepts involved.

Uploaded by

shaliniudhaya47
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Important Computer

Ques
RRB NTPC 2025 UPDATED
Computer Top MCQs
IMP FOR RRB NTPC 2025 1 QUES IN EACH SHIFT
Shift + Tab together — Moves the Cursor
QR Code Stands For — Quick Response
Function of CPU — Reading the Instructions
HDCL Stands For — High-level Data Link Control
Shift + F5 — Start slide show from the current slide
ASCII — American Standard Code for inform interchange
Q. What is the full name of FTP?
एफटीपी का पूरा नाम क्या है?

SSC CHSL Tier-I Exam 2023 RRB NTPC - 2025

A.File Transfer Protocol ▪ FTP stands for File Transfer Protocol.


B.Fine Transfer Protocol ▪ It's a standard network protocol used for the
transfer of computer files between a client
C.First Transfer Protocol
and server on a computer network.
D.Fast transfer protest ▪ FTP is built on a client-server model
architecture using separate control and data
connections between the client and the server.

Ans : A
Q. What is the function of CPU?
सीपीयू का कायय क्या है?

RRB NTPC - 2025

A. Read the instructions ▪ A computer's central processing unit (CPU) is the


central brain of the computer. According to Rhode
B. Knowing the facts Island University, a CPU is a device that processes
C. Editing mathematical functions at incredible speeds.
D. Saving photos ▪ The part of the computer that performs the bulk of
data-processing operations is called the central
processing unit.
▪ It is made up of 3 major component register set,
arithmetic logic unit and control unit

Ans : A
Q. What is the primary function of an operating system?
ऑपरेटटिंग टसस्टम का प्राथटमक कायय क्या है?

RRB NTPC - 2025

A. Manage computer resources Operating System handles the following responsibilities:


B. Manage software 1. Controls all the computer resources.
C. Downloading 2. Provides valuable services to user programs.

D. Editing 3. Coordinates the execution of user programs.


4. Provides resources for user programs.
5. Provides an interface (virtual machine) to the user.
6. Hides the complexity of software.
7. Supports multiple execution modes.
Ans : A 8. Monitors the execution of user programs to prevent errors.
Q. What is the unit of computer calculation?
कम्प्यूटर गणना की इकाई क्या है?
RRB NTPC - 2025

Unit Description Example


A. Binary
Bit 1 or 0 A single pixel in a black and white picture
B. bytes
Byte 8 bits A single character
C. Secondary
Kilobyte 1024 bytes A small email is about 2 kilobytes
D. Harddisks MP3 files take up about 1 megabyte per
Megabyte 1024 kilobytes
minute
Gigabyte 1024 megabytes 1 gigabyte can hold about 300 MP3 songs
1 terabyte can hold about 100 DVD-quality
Terabyte 1024 gigabytes
films
1 petabyte can hold enough MP3 songs to
Petabyte 1024 terabytes play continuously for over 2000 years -
without repeating!
Ans : A The fundamental unit of computer calculation is the bit (short for binary digit)
Q. Find and Replace with is Related to what?
खोजें और प्रटिस्थाटपि करें टकससे सबिं टिं िि है?

RRB NTPC - 2025

A. Telegram ▪ Find and Replace is not just for finding and


B. YouTube replacing a specific word with another word; it
C. Computer can also be used to change a format throughout
your document.
D. Television ▪ Document name can be changed by saving the file
with a different name or by right clicking on the file.

Ans : C
Q. What is the presentation short key called?
प्रेजेंटेशन शॉटय की को क्या कहा जािा है?

RRB JE 2019 RRB NTPC - 2025

A. shift + F6 ▪ A PowerPoint slideshow (PPT) is a presentation


B. shift + F5 created on software from Microsoft that allows users
C. shift + F7 to add audio, visual, and audio/visual features to a
presentation.
D. shift + F0 ▪ The F5 key is start the presentation from the first
slide.
▪ Shift+F5 is the shortcut key to start the PowerPoint
presentation from the current slide.
Ans : B
Q. When someone press Shift + Tab together on a computer what will
happen?
जब कोई किं्यूटर पर Shift + Tab एक साथ दबािा है िो क्या होिा
है? RRB NTPC - 2025

A. Deletes text
B. Moves the cursor
C. Download is done
D. Opens a new tab

Ans : B
Q. Which base is used in computers while creating information?
ू ना टनमायण करिे समय टकस आिार का प्रयोग टकया जािा है?
कम्प्यटू र में सच

RRB NTPC - 2025

A.Binary ▪ A binary number system is one of the four


B.Hexanary types of number systems.
C.Tarcinary ▪ In computer applications, where binary
numbers are represented by only two symbols
D.None or digits, i.e. 0 (zero) and 1(one).
▪ The binary numbers here are expressed in the
base-2 numeral system. For
example, (10110110)2 is a binary number.
Ans : A
Q. Which of the following protocols is commonly used for data
encapsulation in WANs?
टनम्पनटिटखि में से कौन सा प्रोटोकॉि सामान्यिः WAN में डेटा एनकै ्सि
ु े शन
के टिए उपयोग टकया जािा है?
SSC CHSL Tier II 2024

HDLC:
(a) High-Level Data Link Control ▪ The full form of HDLC is High-level Data Link Control
(b) TCP/IP (HDLC).
▪ It is referred to as a communication protocol which is found
(c) Ethernet on the data link layer.
▪ The main job of the HDLC is to transmit
(d) Wi-Fi the data between network nodes.
▪ As it is a protocol of the data link
layer, data is divided into frames.
▪ A frame can be easily transmitted to the digestion via the
network.
▪ It is also referred to as a bit-oriented protocol.
▪ HDLC can be used for both point-to-point and multipoint
Ans : A communication.
Q. What does QR in 'QR code' stand for?
'क्यआ ू र का क्या अथय है?
ू र कोड' में क्यआ

SSC CHSL Tier II 2024

(a) Quick Response ▪ A QR code is a type of barcode that stores information


as a series of pixels in a square-shaped grid and can be
(b) Quick Resolution read simply by a digital device.
(c) Quantum Read ▪ The full form of the QR code is the Quick Response
(d) Query Response Code.
▪ A QR code read in two directions: top to bottom
and right to left. This allows it to store a lot more
information.
▪ Position detection patterns are strategically placed
at three corners of most QR codes found at the top
right, top left, and bottom left corners of QR
Ans : A codes. (Micro QR has one).
Q. Which tab is not available on left panel when you open a presentation?
जब आप कोई प्रेजेंटेशन खोििे हैं िो बाएिं पैनि पर कौन सा टैब उपिब्ि नहीं होिा है?

A.Outline • Slides: This tab displays thumbnails of all


B.Slides slides in the presentation, allowing quick
navigation between slides.
C.Notes • Outline: This tab shows the outline view of the
D.All of above are available presentation, which includes slide titles and
main text content in a hierarchical format.
• Notes: This tab displays speaker notes
associated with each slide, which are useful for
presenters to refer to during a presentation.
Ans : D
Q. What is the primary purpose of RAM (Random Access Memory) in a
computer?
किं्यटू र में RAM (रैंडम एक्सेस मेमोरी) का प्राथटमक उद्देश्य क्या है?
SSC CGL Tier II 2023

▪ It stores data that the computer needs to use temporarily.


(a) Storing permanent data and files ▪ So it is faster than the secondary storage devices. It is a
(b) Providing long-term storage for volatile memory i.e. the data disappear from it when the
power is off.
programs ▪ It is called random access since any memory location can
(c) Providing temporary storage for be accessed randomly for reading and writing.
▪ It usually called the “temporary” memory, which means
data that the CPU is currently that when the system is shut down, the memory is lost.
▪ There are two important types of RAMs:
processing 1. Static RAM (SRAM): The word static indicates that
(d) Managing peripheral devices the memory retains its contents as long as power is
being supplied. However, data is lost when the power
gets down due to volatile nature.
2. Dynamic RAM (DRAM): DRAM, unlike SRAM,
Ans : C must be refreshed continuously in order to maintain the
data.
Q. Which of the following is considered the first mechanical computer
designed by Charles Babbage?
टनम्पनटिटखि में से टकसे चार्लसय बैबेज द्वारा टडजाइन टकया गया पहिा मैकेटनकि
किं्यटू र माना जािा है?
SSC CHSL Tier II 2024

(a) ENIAC ▪ Analytical Engine generally considered the first


(b) Analytical Engine computer, designed and partly built by the English
inventor Charles Babbage in the 19th century (he
(c) Abacus
worked on it until his death in 1871).
(d) UNIVAC ▪ While working on the Difference Engine, a simpler
calculating machine commissioned by the British
government, Babbage began to imagine ways to
improve it.
Ans : B
Q. Which of the following is not a characteristic of a computer?
टनम्पनटिटखि में से कौन सी किं्यूटर की टिशेषिा नहीं है?

a) Versatility • The Computer system has no I.Q. of its own.


b) Accuracy • It does only what it is programmed to do.
• It cannot take decisions of its own.
c) Diligence • A computer is diligent because it can work
d) I.Q. continuously for hours without getting any errors or
without getting grumbled.
• The accuracy of a computer is consistently high and its
level of accuracy depends on its design.
• A computer can perform any task if, it can be broken
down into a series of logical steps.
• Therefore, a computer is versatile.
Ans :
Q. Which of the following keyboard shortcuts is commonly used to
rename a file or folder in Windows OS?
टनम्पन में से कौन सा कीबोडय शॉटय कट सामान्यिः टिडिं ोज ओएस में टकसी फाइि या
फोर्लडर का नाम बदिने के टिए उपयोग टकया जािा है? SSC CHSL Tier II 2024

Shortcut Keys Description


(a) F2 F1
F2
Opens the Help screen for almost every program.
Allows you to rename a selected file or folder.
(b) Alt + Enter F3 Opens a search feature for an application that is active at the moment.

(c) Ctrl + R F4 Alt + F4 closes the active window.


F5 Allows you to refresh or reload the page or document window.
(d) Ctrl + F5 F6 Moves the cursor to the address bar in most Internet browsers.
F7 Used to spell check and grammar check a document in Microsoft Apps (e.g. Word).
F8 Used to access the boot menu in Windows when turning on the computer.
Refreshes a document in Microsoft Word and sends and receives emails in
F9
Outlook.
Activates the menu bar of an open application. Shift + F10 is the same as right-
F10
clicking.
Ans : A F11
F12
Enters and exits full-screen mode in Internet browsers.
Opens the Save As dialogue box in Microsoft Word.
Q. Which key can be pressed to initiate a slide show in MS PowerPoint?
ु करने के टिए कौन सी कुिंजी दबाई जा सकिी है?
एमएस पािरपॉइटिं में स्िाइड शो शरू

SSC CHSL Tier I 2024

(a) Function key F2 ▪ A PowerPoint slideshow (PPT) is a presentation


(b) Function key F8 created on software from Microsoft that allows
users to add
(c) Function key F4
audio, visual, and audio/visual features to a
(d) Function key F5 presentation.
▪ The F5 key is start the presentation from the first
slide.
▪ Shift+F5 is the shortcut key to start the
PowerPoint presentation from the current slide.
Ans : D
Q. Which of the following is not a type of computer code?
टनम्पनटिटखि में से कौन सा किं्यूटर कोड का एक प्रकार नहीं है?

a) EDIC • There is no coding scheme like EDIC.


b) ASCII • EBCDIC stands for Extended Binary
Coded Decimal Interchange Code.
c) BCD • BCD stands for Binary Coded Decimal.
d) EBCDIC • ASCII stands for American Standard
Code for information interchange.

Ans : A
Q. IMT 2030 can be defined as a/an _____.
आईएमटी 2030 को एक _____ के रूप में पररभाटषि टकया जा सकिा है।

RRB RPF Constable - 2025

A) 6th -Generation or 6G technology ▪ IMT-2030 is the name given to the 6th


B) super computer Generation (6G) technology standard.
▪ It represents the next evolution in mobile
C) AI-based domain name
communication technology beyond 5G.
D) 7-Generation technology ▪ The International Telecommunication
Union (ITU) is working on the
standardization of 6G, and IMT-2030 is
a key part of this process.

Ans : A
Q. Which of the following is the time taken by the CPU to access a
location in memory?
टनम्पनटिटखि में से कौन सा समय CPU द्वारा मेमोरी में टकसी स्थान िक पहच
िं ने
में टिया गया समय है?
RRB NTPC – Tier II - 2022

(a) Memory formatting time ▪ The amount of time it takes to move a character from
(b) Instruction cycle or to the CPU from RAM is known as the memory
access time.
(c) Memory access time ▪ Access times for quick RAM chips are 10
(d) CPU frequency nanoseconds (ns) or less.
▪ The memory hierarchy's design, the size of the
blocks at each level, the management rules selected
for each level, and the amount of time required to
access data at each level all affect how quickly data
Ans : A can be accessed from memory.
Q. In how many generations a computer can be classified?
किं्यूटर को टकिनी पीट़ियों में िगीकृि टकया जा सकिा है?

A.3 • 1st Generation of Computer = The period of first


generation: 1946-1959. Vacuum tube based.
B.4
• 2nd Generation of Computer = The period of second
C.5 generation: 1959-1965. Transistor based.
D.6 • 3rd Generation of Computer = The period of third
generation: 1965-1971. Integrated Circuit based.
• 4th Generation of Computer = The period of fourth
generation: 1971-1980. VLSI microprocessor based.
• 5th Generation of Computer = The period of fifth
Ans : C generation: 1980-onwards. ULSI microprocessor based.
Q. Which of the following is NOT an alignment option for text in a cell?
टनम्पनटिटखि में से कौन सा सेि में टे क्स्ट के टिए सरिं ेखण टिकर्लप नहीं है?

SSC CHSL 2024

(a) Justified ▪ Justified is not an alignment option for text in a cell


(b) Center in most spreadsheet applications.
(c) Left ▪ Common text alignment options in spreadsheet
applications include Left, Center, and
(d) Right
Right alignments.
▪ Text alignment determines how the text is
positioned within the cell.
▪ Proper text alignment enhances the readability and
organization of data in a spreadsheet.
Ans : A
Q. Which part of the computer is called its brain?
कम्प्यटू र के टकस भाग को उसका मटस्िष्क कहा जािा है?

RRB NTPC – 2016 RRB NTPC – 2020 RRB NTPC – 2021

(a) ROM ▪

CPU is the abbreviation of Central processing unit.
CPU is known as the brain of the computer.
(b) Hard Disc ▪ CPU controls the overall functioning of the computer.
▪ All the data processing is done inside the CPU.
(c) CPU ▪ The main three parts of the CPU are:
(d) Monitor 1. Arithmetic and Logic Unit.
2. Control Unit.
3. Memory Unit.
▪ A computer's CPU handles all instructions it receives from hardware
and software running on the computer.
▪ The CPU was first invented and developed at Intel with the help of
Ted Hoff and others in the early 1970s.
Ans : C ▪ The Control Unit is the nerve centre of the computer.
Q. Microprocessor was introduced in which generation of computer?
माइक्रोप्रोसेसर का प्रयोग टकस पी़िी के कम्प्यटू र में टकया गया था?

A. Second Generation ▪ The microprocessor brought the fourth generation of


computers, as thousands of integrated circuits were built
B. Fourth Generation onto a single silicon chip.
C. Both (A) and (B) ▪ What in the first generation filled an entire room could now
D. Third Generation fit in the palm of the hand.
▪ The Intel 4004 chip, developed in 1971, located all the
components of the computer—from the Central
processing Unit (CPU) and memory to input/output
controls—on a single chip.
▪ These small computers became more powerful, they could
be linked together to form networks, which eventually led
to the development of the Internet.
▪ Fourth generation computers also saw the development
Ans : B of GUIs, the mouse and handheld devices.
Q. In computer registers, MAR stands for ______.
किं्यूटर रटजस्टरों में, MAR का मििब _______ होिा है।

SSC CGL Tier II 2023

(a) Main Access Register Important Key Points:


(b) Memory Access Register ▪ Role in Memory Operations: The MAR is
essential for directing data flow to and from
(c) Memory Address Register memory, ensuring that the CPU communicates
(d) Main Address Register effectively with RAM.
▪ Link Between CPU and Memory: It acts as an
intermediary between the CPU and the memory
unit, facilitating access to specific data locations.
▪ Used in Fetch and Store Operations: The MAR
is used during both fetch and store operations,
making it crucial for the execution of
Ans : C instructions.
Q. Global weather forecasting is done by using.
िैटिक मौसम पिू ायनमु ान का उपयोग करके टकया जािा है।

RRB NTPC – 2021

(a) Mini Computers Supercomputers


▪ A Supercomputer would be used for weather
(b) Hybrid Computers forecasting.
▪ Supercomputers are used to forecast climate
(c) Micro Computers research, molecular modelling, and oil and gas
(d) Super Computers exploration.
▪ Meteorologists use them to do research on the
atmosphere and worldwide temperature variation.
▪ Scientists use them for sub-atomic demonstrating,
which gives them the opportunity to figure out the
structures and properties of natural composites.
▪ They are also used to figure out the impact of wind and
Ans : D turbulence on a plane.
Q. Which of the following keyboard shortcut is used to hide/show desktop
in Windows system?
टिडिं ोज टसस्टम में डेस्कटॉप को टिपाने/टदखाने के टिए टनम्पनटिटखि में से टकस
कीबोडय शॉटय कट का उपयोग टकया जािा है?

A.Alt + Ctrl + D ▪ Windows Key + H → Launch voice typing.


(updated in Windows 11.)
B.Windows Key + H ▪ Alt + Ctrl + H → Popular programs using this
C.Alt + Ctrl + H shortcut.
D.Windows Key + D ▪ Alt + Ctrl + D → preview the desktop in full-
screen mode.

Ans : D
Q. Normally, a QWERTY keyboard has ______ keys.
आम िौर पर, QWERTY कीबोडय में ______ कुिंटजयााँ होिी हैं।
RRB NTPC 2021

(a) 120 ▪ The first six letters on the upper row of the keyboard are
referred to as QWERTY.
(b) 98 ▪ Christopher Latham Sholes, whose Type-Writer, as it was
then known, was first mass-produced in 1874, came up
(c) 104
with the key arrangement.
(d) 100 ▪ Since then, it has evolved into what could be the most
common machine-user interface ever.
▪ The QWERTY keyboard layout was created to make it
easier for telegraph operators to transcribe Morse code.
▪ The short explanation is that in the 1880s, QWERTY
Ans : C prevailed in a struggle for supremacy.
Q. Any person known as “computer literate”. If he is capable only –
कोई भी व्यटि टजसे "कम्प्यटू र साक्षर" कहा जािा है। यटद िह सक्षम है िो के िि -
RRB NTPC CBT – II – 2017

(a) To run important applications Recap –


Different Generations of Computer-
(b) To make anti-virus softwares 1. First Generation- 1946-1959, Vacuum tube-
(c) To write programs based
(d) To hack the computers 2. Second Generation- 1959-1965, Transistor-
based
3. Third Generation- 1965-1971, Integrated
Circuit based
4. Fourth Generation- 1971-1980, VLSI
microprocessor-based
5. Fifth Generation- 1980-onwards, ULSI
microprocessor-based
Ans : A
Q. On a multitasking system, a ________is a certain amount of RAM that is
allocated as a temporary holding area so that the CPU can manipulate data
before transferring it to a particular device.
एक मर्लटीटाटस्किंग प्रणािी पर, _________ RAM की एक टनटिि मात्रा(िॉर्लयमू ) होिी है टजसे एक
अस्थायी होटर्लडिंग क्षेत्र के रूप में आििंटटि टकया जािा है िाटक CPU टकसी टिशेष टडिाइस पर
स्थानाििं ररि करने से पहिे डेटा में हेरफे र कर सके ।

A.Helix ▪ Multitasking is the capability of the operating


system of running several applications at the same time.
B.Wizard ▪ It is therefore deeply related to the OS capability for
C.Bounce managing shared resources, and in particular for arbitrating
conflicts resulting from resource over-commitment.
D. Buffer ▪ In a multitasking environment, the totality of
the computer’s resources (memory, files, CPU time) is
allocated to different applications, and they are managed in
such a way that each one of them gets a share according
to specific priority policies.
Ans : A
Q. What is the work of BIOS?
BIOS का काम क्या है?
RRB NTPC – 2016

(a) To starting system hardware ▪ BIOS, in full Basic Input/Output System, a computer
program that is typically stored in EPROM and used
parts by the CPU to perform start-up procedures when the
(b) To update the system computer is turned on.
▪ Its two major procedures are determining what
(c) To ensuring system peripheral devices (keyboard, mouse, disk drives,
performance printers, video cards, etc.
▪ BIOS is firmware, in short.
(d) To protect crashing of system ▪ It is stored on a chip on a part of the computer
motherboard and is basically, a set of instructions that
run to help load the operating system.
▪ Your OS would fail to load, if not for the BIOS! When
you turn on the computer, BIOS instructions are
initiated.
Ans : A
Q. Full name of VLSI is –
िीएिएसआई का परू ा नाम है –
RRB NTPC CBT - II – 2017

(a) Very large scale integration ▪ VLSI Technology, Inc. was a company
(b) Village level system integration that built and produced custom and semi-
(c) Virtual light system information customized integrated circuits (ICs).
▪ The company was based in Silicon
(d) Very fide large system integration Valley, with headquarters at 1109 McKay
Drive, San Jose.
▪ VLSI was acquired by Philips
Electronics for about $1 billion in June
1999, and is now part of the Philips spin-
off NXP Semiconductors.

Ans : A
Q. Transistor-based computer systems were developed in ____ generation
of computers.
ट्ाटिं जस्टर आिाररि किं्यटू र टसस्टम का टिकास किं्यूटर की ____ पी़िी में टकया
गया था।

A.first Generation Duration Electronic Component Used

B.second First Generation Computers 1946-1954 Vacuum Tubes

C.third
Second Generation Computer 1955-1964 Transistors
D.fourth
Third Generation Computer 1964-1977 Integrated Circuits

Fourth Generation Computer 1978 - Present VLSI or Microprocessors

Ans : B Fifth Generation Computer Present and Future ULSI or Bio-Chips


Q. The name of the 1st electronic digital computer of the world is:
टिि के प्रथम इिेक्ट्ॉटनक टडटजटि किं्यटू र का नाम है:
RRB NTPC – 2021

(a) ENIAC ▪ ENIAC- Electronic Numerical Integrator and


(b) PROLOG Computer
(c) PARAM ▪ The credit for the invention of ENIAC is given to J.
Presper Eckert and John Mauchly.
(d) UNIVAC ▪ In 1946, the year it was revealed, the ENIAC could
churn 5,000 addition problems in one second, far faster
than any device yet invented.
▪ ENIAC was designed by the U.S. Army to automate
the process of making fast and accurate artillery
calculations during World War II.

Ans : A
Q. Which function key is used for opening help?
हेर्लप खोिने के टिए टकस फिंक्शन कुिंजी का उपयोग टकया जािा है?

A.F1 ▪ F1 function key is used for opening help.


▪ ​A function key is a key on a computer keyboard to perform certain
B.F2 actions.
C.F4 ▪ The function keys are arranged on the top of the computer keyboard
numbered across from F1 to F12.
D.F3 ▪ The keys are frequently used in combination with other keys such as
the CTRL key, the ALT key, and the SHIFT key.
▪ The function keys provide some interesting shortcuts for common
computer functions that can be useful tools in everyday computing.
Ans : A
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.
To move the cursor to the address bar in most web
F6
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
Q. Which of the following devices is used for applications like
Computer Aided Design (CAD)?
टनम्पनटिटखि में से कौन सा उपकरण किं्यूटर एडेड टडजाइन (सीएडी) जैसे
अनप्रु योगों के टिए उपयोग टकया जािा है?
RRB NTPC 2021

▪ Plotter: A plotter is an output device as it is a type of printer


(a) Speaker which is used to make line drawings on paper with one or more
(b) Pantograph automated pens using the commands from a computer.
▪ Speaker: Speakers are one of the most common output devices
(c) Scanner as it produces audio output in the form of sound waves. Speaker
(d) Plotter is a device that converts electrical energy into sound energy.
▪ Printer: It is an output device as it takes the input command
from the user and gives the output in the form of a texted
document.
▪ Scanner: A scanner is an input device as it is only able to send
Ans : D information to the computer.
Q. Which of the following is NOT an internal part of the computer?
टनम्पनटिटखि में से कौन सा किं्यटू र का आििं ररक भाग नहीं है?

RRB NTPC 2021

(a) RAM ▪ A pen drive is also called a USB flash


(b) Motherboard drive.
(c) Video card ▪ It is a data storage device that
(d) Flash drive includes flash memory with an
integrated USB interface.

Ans : D
Q. What is the full form of PNG in the computer image format?
ू य रूप क्या है?
किं्यूटर इमेज प्रारूप में PNG का पण

A.Printable New Graphic ▪ PNG (Portable Network Graphics) PNG (Portable Network
Graphics)
B.Printable New Graphical ▪ PNG is a format for storing bit-mapped or raster images on the
computer.
C.Port Natural Graphics ▪ PNG is also known as a successor of GIF format images.
▪ It uses the less compression technique to save images like GIF
D.Portable Network Graphics 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
Ans : D 256 colors only in GIF.
▪ PNG has a file extension ".png".
▪ 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.
Q. What is the keyboard command to delete ledger created in tally?
टै िी में बनाए गए िेजर को हटाने के टिए कीबोडय कमाडिं क्या है?

A. Alt + D ▪ A ledger is the actual account head to identify your


transactions and are used in all accounting
B. Ctrl + D
vouchers.
C. Shift + D ▪ Alt + D is the keyboard command used to delete
D. Alt + F2 the ledger created in tally.
▪ Go to Gateway of Tally > Accounts Info. >
Ledgers > Alter > Press Alt+D .
▪ Users can delete any ledger in Tally if the balance
does not exist in that particular ledger.
Ans : A
Q. What is the purpose of the 'Sleep' option in the Windows OS?
टिडिं ोज ऑपरेटटिंग टसस्टम में 'स्िीप' टिकर्लप का उद्देश्य क्या है?

A.To shut down the system ▪ When a computer is put into Sleep mode, it
enters a low-power state.
B.To restart the system ▪ All open documents and applications are
C.To save all open documents and kept active in the RAM.
programs while reducing power ▪ The system uses just enough power to
consumption maintain the memory state, allowing quick
resumption.
D.To delete temporary files ▪ This is ideal for short breaks as it offers a
fast wake-up while saving energy.

Ans : C
Q. How do you view hidden files and folders in File Explorer in
the Windows OS?
आप टिडिं ोज ऑपरेटटिंग टसस्टम में फाइि एक्स्िोरर में टिपी हई फाइिों और
फोर्लडरों को कै से देखिे हैं?

A.Go to 'View' -> Select 'Show hidden items'


B.Right-click -> Select 'View hidden files'
C.Go to 'Settings' -> Select 'Hidden files'
D.Go to 'Edit' -> Select 'Show hidden items'

Ans : A
Q. The Windows sound file has the extension _______.
टिडिं ोज साउिंड फाइि का एक्सटें शन _______ है।

Extension Description
A..wav
B..sit .sit
Stuffit, or .sit, is a format used to compress files,
primarily for the Macintosh operating system.
C..wpd
D..dif
WPD is a text document file format created by Satellite
.wpd Systems International for their WordPerfect word
processing software in 1980.

DIF stands for Data Interchange Format that is used to


.dif import/export spreadsheets data between different
Ans : A applications.
Q. Which of the following keyboard shortcuts is used for closing an MS
Word 2010 document?
एमएस िडय 2010 दस्िािेज को बदिं करने के टिए टनम्पनटिटखि में से टकस
कीबोडय शॉटय कट का उपयोग टकया जािा है?

A. Ctrl + E ▪ To quickly close the current application, press


B. Ctrl + W Alt+F4.
C. Ctrl + N ▪ This works on the desktop and even in
new Windows 8-style applications.
D. Ctrl + O ▪ To quickly close the current browser tab or
document, press Ctrl+W.
▪ This will often close the current window if
there are no other tabs open.
Ans : B
Important Shortcut keys used in MS Word:

❑ Cut the selected content to the Clipboard - Ctrl+X


❑ Copy the selected content to the Clipboard - Ctrl+C
❑ Paste the contents of the Clipboard -Ctrl+V
❑ Increase the font size by 1 point.- Ctrl+]
❑ Center the text - Ctrl+E
❑ Align the text to the left - Ctrl+L
Most Important Keyboard Shortcuts
Alt+F Displays the File menu options Ctrl+V To Paste
Alt+E Opens the Edit options Ctrl+Y Redo last action
Alt+Tab Switch between open programs Ctrl+Z Undo last action
F1 Used by every Windows program for Help Ctrl+K Insert hyperlink for selected text.
Ctrl+P To print the document
F2 To Rename a selected file Home Moves the beginning of the current line
F5 Refresh the page or current window
Ctrl+D To Bookmarks the current page (for most Browsers) Ctrl+Home Moves to the beginning of the document

Ctrl+N Create a new or blank document or open a new tab in End Moves to the end of the line
the Internet Browser Ctrl+End Moves to the end of the document
Ctrl+Left arrow Moves one word to the left at a time.
Ctrl+O To Open a file Ctrl+Right arrow Moves one word to the right at a time.
Ctrl+A Select the entire text at once
Alt+F4 To close the program currently active
Ctrl+B Change the text to Bold
Alt+Enter Open the properties for the selected item
Ctrl+I Change the Text to Italics
Ctrl+U Underline the selected text
Ctrl + Shift + Create a non-breaking space
Ctrl+S Save the file or document you are working on Spacebar
Ctrl + Shift+ < Decrease font size one value
Ctrl+X Cut selected part of the text or image Ctrl + Shift + > Increase the font size one value
Shift+Del Remove the selected items Ctrl + [ Increase the font size by 1 point
Ctrl+C To copy the text or image Ctrl + ] Decrease the font size by 1 point
Most Important Keyboard Shortcuts

Ctrl + Spacebar Remove paragraph or character formatting Ctrl + Tab Move between two or more open
Excel files
Ctrl + Alt + V Paste special
Ctrl + Page Up Move between Excel worksheet in
Ctrl + Shift + V Paste formatting only the same Excel document
Ctrl+F10 Maximise the document window Alt + = Create a formula to sum all of the
cells
Ctrl + Shift + T Enter the current time
Ctrl + ’ Insert the value of the above cell
Ctrl + ; Enter the current date into cell currently selected.
Shift + F3 Open the Excel formula window Ctrl + Arrow key Move to next section to text
Shift + F5 Bring up search box. Ctrl + Space Select entire column
Shift + Space Select entire row
Ctrl + F9 Minimise current workbook
Ctrl+L To left-align the selected text
Ctrl + F10 Maximise currently selected workbook
Ctrl+R To right-align the selected text
Ctrl + F6 Switch between open workbooks/window
Ctrl+J To justify the selected text
Ctrl + Page Down Move between Excel worksheets in the same Excel Ctrl+E To centre align the text
document
Ctrl+Del To delete the word to the right
Most Important Computer Abbreviations
AI Artificial Intelligence
AIM AOL Instant Messenger
ALGOL Algorithmic Language
API Application Program Interface
AUI Attachment Unit Interface
BASIC Beginner’s All-purpose Symbolic Instruction Code
BCC Blind Carbon Copy
BCD Binary Coded Decimal
BIOS Basic Input Output System
BRD Blu-Ray Disc
CC Carbon Copy
CD Compact Disk
CMD Command
COBOL Common Business Oriented Language
COMPUTER Commonly Operated Machine Particularly Used for Trade/Technology, Education, and Research.

CPU Central Processing Unit


CROM Computerized Range of Motion
CTRL Control (computer keyboard key)
DBMS Data Base Management System
DDL Data Definition Language
DHTML Dynamics Hyper Text Markup Language
Doc Document
DOS Disk Operating System
DRAM Dynamic Random Access Memory
DVD Digital Video/Versatile Disc
Most Important Computer Abbreviations
EPROM Erasable Programmable Read Only Memory
GDI Graphical Device Interface
GUI Graphical User Interface
HD Hard Disk
HTML Hyper Text Markup Language
HTTP Hyper Text Transfer Protocol
INTEL Integrated Electronics
IOP Input Output Processor
IP Internet Protocol
KB KILOBYTE
Kbps Kilobits/Kilobytes Per Second
LAN Local Area Network
LED Light Emitting Diode
MB Motherboard/ Megabyte
MBPS Megabytes Per Second
Mbps Megabits Per Second
MODEM Modulator Demodulator
OS Operating System
PC Personal Computer
PIXEL Picture Element
PNG Portable Network Graphics
PROM Programmable Read Only Memory
RAM Random Access Memory
ROM Read Only Memory
SAM Software Asset Management
Most Important Computer Abbreviations
DVI Digital Visual Interface
DVR Digital Video Recorder
EEPROM Electronically Erasable Programmable Read Only Memory
E-Mail Electronic Mail
SDRAM Synchronous Dynamic Random Access Memory
SFTP Secure File Transfer Protocol
SRAM Static Random Access Memory
SYSOP System Operator
TCP Transmission Control Protocol
UI User Interface
URL Uniform Resource Locator
USB Universal Serial Bus
VCD Video Compact Disk
VIRUS Vital Information Resource Under Siege
WAN Wide Area Network
WIFI Wireless fidelity
WLAN Wireless Local Area Network
WWW World Wide Web
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