Computer GK
Computer GK
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?
Ans : A
Q. What is the function of CPU?
सीपीयू का कायय क्या है?
Ans : A
Q. What is the primary function of an operating system?
ऑपरेटटिंग टसस्टम का प्राथटमक कायय क्या है?
Ans : C
Q. What is the presentation short key called?
प्रेजेंटेशन शॉटय की को क्या कहा जािा है?
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
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
Ans : A
Q. IMT 2030 can be defined as a/an _____.
आईएमटी 2030 को एक _____ के रूप में पररभाटषि टकया जा सकिा है।
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) 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?
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 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।
C.third
Second Generation Computer 1955-1964 Transistors
D.fourth
Third Generation Computer 1964-1977 Integrated Circuits
Ans : A
Q. Which function key is used for opening help?
हेर्लप खोिने के टिए टकस फिंक्शन कुिंजी का उपयोग टकया जािा है?
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.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?
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.
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.