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Q1Computer · Introduction to ComputerAllahabad High Court ARO 2021
The earliest known calculating device is:
Answer: B) Abacus
The abacus is considered the earliest known calculating device because it was developed in ancient Mesopotamia around 27002300 BCE. It is a mechanical tool that uses beads slid on rods to perform basic arithmetic operations like addition, subtraction, multiplication, and division. -
Q2Computer · Internet & E-MailSSC CGL Tier-II Paper I 2022
_____ is the bit-rate of available or consumed information capacity expressed typically in metric multiples of bits per second.
Answer: A) Bandwidth
The correct answer is (a) Bandwidth.
Bandwidth refers to the bit-rate of available or consumed information capacity, usually measured in bits per second (bps) or its multiples such as Kbps, Mbps, or Gbps.
It indicates how much data can be transferred over a network or communication channel in a given amount of time. -
Q3Computer · Introduction to ComputerUPPCL Technician Grade-II 2021
Which of the following is related to the ability of a computer to perform different types of tasks with the same accuracy and efficiency?
Answer: B) Versatility
Versatility is the ability of a computer to perform different types of tasks with the same accuracy and efficiency. A computer can switch from document editing to playing a game, and then to performing calculations or programming, all with consistent performance. This is made possible by the combination of hardware and software. The software provides instructions on how to process various inputs, while the hardware (like the CPU) executes these instructions rapidly. The other options are not correct in this context: Accuracy relates to the absence of errors, Diligence refers to working continuously without fatigue, and Reliability is about delivering correct results consistently over time. -
Q4Computer · Introduction to ComputerAllahabad High Court Computer Assistant 2021
India's first supercomputer PARAM was developed by:
Answer: B) C-DAC
India's first supercomputer PARAM 8000 was developed by CDAC (Centre for Development of Advanced Computing). It was launched in 1991 under the leadership of Dr. Vijay Bhatkar, providing India with supercomputing capability despite American technology embargoes. -
Q5Computer · MS-Office (Word, Excel, PowerPoint)SSC Delhi Police Constable 2023
What happens when you press Backspace after selecting text in Word 365?
Answer: B) The text is deleted to the left of the cursor
When text is selected in MS Word 365, pressing Backspace deletes the entire selection, removing it from the document.
Backspace normally deletes characters to the left of the cursor, but with a selection, it removes that selection instead.
The deleted text is not copied to the clipboard (unless you use Cut), and you can reverse the deletion with Ctrl + Z. -
Q6Computer · Organization of ComputerRRB NTPC (Graduate Level) CBT-1 2025
Which of the following components is/are NOT a part of the Central Processing Unit (CPU)?
Answer: B) Graphic Card
The correct answer is (b) Graphic Card.
A Graphic Card (also called GPU – Graphics Processing Unit) is an external component responsible for rendering images, videos, and animations, especially in gaming and graphic-intensive tasks.
It is not a part of the CPU but a separate hardware component connected to the motherboard. -
Q7Computer · Operating SystemUPRVUNL Assistant Accountant 2022
Which of the following is NOT a function of an operating system?
Answer: D) Control over user performance
An operating system's primary functions include managing resources like security, memory management, and file management. However, it does not directly exercise control over user performance this is managed by the user themselves or through application software, not by the OS kernel. -
Q8Computer · Computer Hardware (Input/Output, Buses & Ports)BSPHCL Technician Grade-III 2018
Which of the following input devices helps in the movement of the cursor in windows?
Answer: D) Mouse
A mouse is a pointing device that controls cursor movement in Windows operating system. By moving the mouse physically, users can direct the cursor anywhere on the screen, while other options like OCR and MICR are used for data entry purposes. -
Q9Computer · Operating SystemRRB NTPC (Undergraduate)
Which user interface requires users to type instructions using the keyboard to perform tasks?
निम्नलिखित में से किस यूज़र इंटरफेस में यूज़र्स को टास्क को करने के लिए कीबोर्ड का उपयोग करके निर्देश टाइप करने की आवश्यकता होती है?
Answer: D) Command-based Interfaceकमांड-बेस्ड इंटरफेस (Command-based Interface)
Topic: Types of User Interfaces
Command-based Interface (CLI) : Users type text commands
using keyboard to execute tasks and operations.
Examples: DOS, Unix/Linux Terminal, Command Prompt
Other interfaces:
GUI uses mouse/icons, Voice uses speech, Touch uses screen.
Answer: Option 4 → Command-based Interfaceविषय: यूजर इंटरफेस के प्रकार
Command-based Interface (CLI) : उपयोगकर्ता कीबोर्ड से
टेक्स्ट कमांड टाइप करके कार्य करते हैं।
उदाहरण: DOS, Unix/Linux Terminal, Command Prompt
अन्य इंटरफेस:
GUI माउस/आइकन, Voice बोलकर, Touch स्क्रीन से काम करते हैं।
उत्तर: विकल्प 4 → Command-based Interface -
Q10Computer · MS-Office (Word, Excel, PowerPoint)UPPCL Technician Grade-II 2023
In MS-Excel 2010, ........ keyboard shortcut is used to preview the worksheet before you print.
Answer: A) Ctrl + F2
In MS-Excel 2010, the Ctrl + F2 shortcut opens the Print Preview window. This allows you to view the worksheet's layout and page breaks before printing, helping to optimize the final print output and avoid potential formatting issues. -
Q11Computer · Web Design & HTMLNVS PGT 2019
DOM represents a webpage in what way?
Answer: C) Tree-like structure
The DOM (Document Object Model) represents a webpage as a hierarchical tree structure where each HTML element is a node. This structure reflects the document's logical organization through parent-child relationships, enabling programmatic access and manipulation of content and structure. -
Q12Computer · Internet & E-MailSSC Delhi Police Constable 2023
Which of the following statements is FALSE regarding attaching a file in an email?
Answer: C) The size of the attachment is unlimited.
Most email services like Gmail, Outlook, etc., limit the size of attachments, usually to around 25 MB.
Therefore, the statement saying attachment size is "unlimited" is false. -
Q13Computer · Operating SystemRRB NTPC Stage-I 2021
A/an -------- is required for booting a computer.
Answer: D) Operating system
The booting process is the initialization of a computer that loads the operating system into memory. It starts all hardware components and provides an interface for user interaction. Without an operating system, a computer cannot complete the boot process. -
Q14Computer · MS-Office (Word, Excel, PowerPoint)UPPCL Executive Assistant 2022
Cell A1 stores the date "21-09-2022", which is Wednesday. Which of the following formulas in cell B1 will display "21-Sep- 2022"?
Answer: A) =TEXT(A1, "dd-mmm-yyyy")
The TEXT function displays a date in a specific format. "dd" shows the two-digit day, "mmm" shows the abbreviated month name (like Sep), and "yyyy" shows the four-digit year. This format correctly displays "21-Sep-2022". -
Q15Computer · MS-Office (Word, Excel, PowerPoint)SSC Delhi Police Constable 2025
Which Excel function would you use to calculate the internal rate of return (IRR) for a series of cash flows?
Answer: B) IRR
The correct answer is (b) IRR.
The IRR (Internal Rate of Return) function in Excel is used to calculate the internal rate of return for a series of cash flows. -
Q16Computer · MS-Office (Word, Excel, PowerPoint)UPPCL Technician Grade-II 2023
Which of the following options is used to copy a text from one area to another in a word document?
Answer: D) Copy and Paste
Copy and Paste is used to duplicate text from one area to another while keeping the original text intact. It creates a copy of the selected text without removing it from its original location, unlike Cut and Paste which moves the text. This is the standard method for text duplication. -
Q17Computer · MS-Office (Word, Excel, PowerPoint)SSC Delhi Police Constable 2023
How can we add names and addresses to a standard document in Microsoft Word 365?
Answer: B) By mail merge
The Mail Merge feature in Microsoft Word is specifically designed to combine a standard document with a data source, such as a list of names and addresses. This process automates the creation of personalized documents like letters or labels by merging the template with individual records, making 'Mail Merge' the correct method. -
Q18Computer · MemorySSC JE 2018
Which among the following is/are storage device/devices used in computers?
Answer: D) All options are correct.
Floppy disk, Hard disk, and Punched tape are all storage devices used in computers to store data. Punched tape was an early storage medium, while floppy and hard disks are later digital storage devices. All these devices serve the primary function of preserving data permanently. -
Q19Computer · Operating SystemUPSSSC Junior Engineer 2021
What is a deadlock?
Answer: A) Condition where each process is blocked and waiting for other to release resources
A deadlock is a situation where two or more processes are blocked indefinitely, each waiting for a resource held by another process in the cycle. This occurs when four necessary conditions are met simultaneously: mutual exclusion, hold and wait, no preemption, and circular wait, creating a permanent blocking state in the system. -
Q20Computer · Internet & E-MailUPPCL Executive Assistant 2022
In Gmail, you can choose a username that is __ characters long.
Answer: A) 6 to 30
A Gmail username (the local part of the email address) must be between 6 and 30 characters long. This length ensures a memorable and valid email address for the user. It can include letters, numbers, and periods.
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