Computers MCQ Quiz - Objective Question with Answer for Computers - Download Free PDF

Key Points

• An Internet Service Provider (ISP) is a company that provides individuals and organizations access to the Internet and other related services such as website building and virtual hosting.
• ISPs provide internet services through various technologies such as dial-up, DSL, cable modem, wireless or dedicated high-speed interconnects.
• They also provide email services, domain registration, web hosting, and browser services.
• ISPs play a crucial role in facilitating communication, commerce, and entertainment in the digital age.

Important Points

• ISPs can be classified into different tiers based on their network infrastructure and range of services provided. Tier 1 ISPs have a global reach and interconnect with other Tier 1 networks without paying for IP transit. Tier 2 ISPs buy transit from Tier 1 networks and sell services to end-users. Tier 3 ISPs purchase internet transit from Tier 2 ISPs and focus on providing internet services to local or regional customers.
• Examples of ISPs include companies like Comcast, AT&T, Verizon, and Spectrum in the United States, and BT Group, Sky Broadband, and Virgin Media in the UK.

Explanation:

The question asks what the "This PC" icon on a Windows desktop represents. The correct answer is:

Option 3: Access to drives, files, and system properties.

To understand why this is the correct answer, let’s delve deeper into what the "This PC" icon signifies and how it functions within the Windows operating system. Additionally, we will analyze why the other options are incorrect.

Correct Option Analysis:

The "This PC" icon, formerly known as "My Computer" in earlier versions of Windows, is an integral part of the Windows desktop environment. Here’s a detailed explanation of its purpose and functionality:

Access to Drives: The "This PC" icon provides a comprehensive view of all the storage drives connected to the computer. This includes internal hard drives, solid-state drives, external USB drives, CD/DVD drives, and network drives. Users can access any of these drives directly from "This PC" to view, manage, and organize their files and folders.

Files and Folders: Within "This PC," users can navigate through the file system of the computer. This includes accessing personal folders such as Documents, Downloads, Pictures, Music, and Videos. It also allows users to create new folders, move files, copy files, and perform other file management tasks. Essentially, "This PC" serves as a gateway to all the user’s data stored on the computer.

System Properties: "This PC" also provides access to the system properties of the computer. By right-clicking on the "This PC" icon and selecting "Properties," users can view important information about their computer, such as the operating system version, processor type, installed RAM, system type (e.g., 64-bit or 32-bit), and the computer name. Additionally, users can access advanced system settings, device manager, and other system configuration tools from this menu.

Thus, option 3 accurately describes the multifaceted role of the "This PC" icon in providing access to drives, files, and system properties.

Additional Information

To further understand the analysis, let’s evaluate the other options:

Option 1: An application launcher

This option is incorrect because the "This PC" icon is not an application launcher. An application launcher is a utility or interface that allows users to start or open software applications. Examples of application launchers include the Start menu, taskbar, or desktop shortcuts for specific programs. "This PC" does not function in this capacity; instead, it is designed for file management and system property access.

Option 2: A file that stores system updates

This option is also incorrect. System updates are typically managed by the Windows Update utility, which is accessed through the Settings app or Control Panel. Updates are downloaded and installed from Microsoft’s servers and are not stored within the "This PC" icon. The "This PC" icon does not play any role in the storage or management of system updates.

Option 4: A shortcut to the Control Panel

This option is incorrect because the "This PC" icon is not a direct shortcut to the Control Panel. While it is true that users can access certain system settings and properties through "This PC," it is not synonymous with the Control Panel. The Control Panel is a separate utility that provides a wide range of system configuration options, including hardware settings, user accounts, network settings, and more. "This PC" primarily focuses on file management and accessing system properties related to the computer's hardware and storage.

Conclusion:

The "This PC" icon on a Windows desktop is a crucial tool for users to manage their files, access storage drives, and view system properties. It does not function as an application launcher, a file for system updates, or a shortcut to the Control Panel. Understanding the role of "This PC" is essential for effectively navigating and managing the Windows operating system. By providing a centralized location for accessing drives, files, and system information, "This PC" helps users maintain organization and control over their computer’s data and settings.

The correct answer is 4) Macro Virus.

• Macro Virus:

  • These viruses are specifically designed to infect documents (like Word documents or Excel spreadsheets) that contain macros.
  • Macros are small programs embedded within these documents, and macro viruses exploit this functionality to spread.

• Other Virus Types:

  • Polymorphic Virus: These viruses change their code each time they infect a new file, making them harder to detect.
  • Network Virus: These viruses spread through computer networks.
  • Resident Virus: These viruses install themselves in a computer's memory and can infect files whenever they are accessed.

Therefore, the virus designed to attach itself to documents and spread through macros is a macro virus.

Explanation:

Purpose of the 'Sleep' Option in Windows OS

Definition: The 'Sleep' option in the Windows Operating System is a power-saving state that allows a computer to quickly resume full-power operation (typically within several seconds) when you want to start working again. Putting your PC to sleep is like pausing a DVD player; the computer immediately stops what it’s doing and is ready to start again when you want to resume your work.

Working Principle: When a computer enters sleep mode, it saves the current state of all open documents, programs, and files to the system's memory (RAM) while significantly reducing power consumption. The computer appears to be off, but it can quickly "wake up" and return to its previous state without the need for a full reboot. Essentially, the sleep mode allows the computer to conserve energy without losing any of your work.

Advantages:

• Energy Efficiency: Sleep mode uses a minimal amount of power, which is beneficial for both energy conservation and cost savings.
• Quick Resume: Allows for a fast return to your work, as the system resumes from where it left off, typically within a few seconds.
• Convenience: Ideal for short breaks, as it doesn’t close any programs or documents, allowing for seamless continuity in work.

Disadvantages:

• Power Dependency: Since sleep mode relies on a small amount of power, a power outage or battery drain (in the case of laptops) could result in loss of unsaved data.
• Not Ideal for Long Periods: For extended periods of inactivity, shutting down the system or using hibernation might be more suitable to save more power.

Applications: The sleep mode is commonly used in various scenarios, including during short breaks from work, overnight pauses, and in situations where quick access to the system is necessary without the need for a full boot-up sequence. It is particularly useful in office environments, educational settings, and personal use where work continuity is important.

Correct Option Analysis:

The correct option is:

Option 3: To save all open documents and programs while reducing power consumption.

This option correctly describes the purpose of the sleep mode in Windows OS. When the computer enters sleep mode, it saves the state of all open documents and programs in the system’s memory, reducing power consumption significantly while allowing for a quick resume of operations.

Additional Information

To further understand the analysis, let’s evaluate the other options:

Option 1: To shut down the system.

This option is incorrect because shutting down the system involves closing all programs and documents, logging off all users, and completely turning off the computer. Unlike sleep mode, shutting down does not allow for a quick resume of work and requires a full boot-up process to start the system again.

Option 2: To restart the system.

Restarting the system is a different process where the computer closes all programs and documents, logs off all users, and then turns off and on again, rebooting the system. This is often used for system updates or troubleshooting, but it does not save the current state of open documents and programs like sleep mode does.

Option 4: To delete temporary files.

This option is incorrect as deleting temporary files is a maintenance task that involves removing unnecessary files to free up space and improve system performance. This action does not relate to the power-saving and quick resume functionalities provided by the sleep mode.

Conclusion:

The sleep mode in Windows OS is a valuable feature for conserving energy while maintaining the state of open documents and programs, allowing for a quick return to work. It is distinct from shutting down, restarting, and deleting temporary files, which serve different purposes. Understanding these differences helps users choose the appropriate action based on their needs, ensuring efficient and effective use of their computer systems.

Explanation:

Viewing Hidden Files and Folders in Windows OS File Explorer

Introduction: Sometimes, files and folders are hidden in Windows OS for various reasons, such as system stability, security, or to prevent accidental deletion. However, users may need to view these hidden files to troubleshoot issues, manage files, or simply access all the content on their system. Windows OS provides a straightforward method to view these hidden files and folders in File Explorer.

Correct Option Analysis:

The correct option for viewing hidden files and folders in Windows OS File Explorer is:

Option 1: Go to 'View' -> Select 'Show hidden items'

This option is accurate and reflects the steps required to display hidden files and folders in Windows OS File Explorer. Let's break down the process:

Step-by-Step Process:

• Open File Explorer: Launch File Explorer by clicking on the folder icon in the taskbar or by pressing Windows + E on your keyboard.
• Navigate to the 'View' Tab: Once File Explorer is open, navigate to the top menu and click on the 'View' tab.
• Select 'Show hidden items': In the 'View' tab, you will find a checkbox labeled 'Hidden items' under the 'Show/hide' group. Click this checkbox to enable the visibility of hidden files and folders.

Visual Representation:

After completing these steps, any hidden files and folders in the current directory will become visible. They are typically displayed with a slightly transparent or faded icon to distinguish them from regular files and folders.

Important Information:

To further understand the analysis, let’s evaluate the other options:

Option 2: Right-click -> Select 'View hidden files'

This option is incorrect as it does not reflect the actual procedure in Windows OS. Right-clicking in File Explorer does not present an option to 'View hidden files.' The correct method involves using the 'View' tab and selecting 'Show hidden items.'

Option 3: Go to 'Settings' -> Select 'Hidden files'

This option is also incorrect. While some file visibility settings can be managed via the Windows Settings app, the specific setting to view hidden files in File Explorer is accessed through the 'View' tab within File Explorer itself, not the 'Settings' app.

Option 4: Go to 'Edit' -> Select 'Show hidden items'

This option is incorrect because there is no 'Edit' tab in the File Explorer ribbon in Windows OS. The correct tab to use is 'View,' where you can find the 'Show hidden items' checkbox.

Conclusion:

Viewing hidden files and folders in Windows OS File Explorer is a straightforward process involving the 'View' tab and selecting 'Show hidden items.' This method ensures users can access all files and folders, including those that are typically hidden for system stability or security reasons. Understanding the correct steps and distinguishing them from incorrect methods is crucial for efficient file management and troubleshooting in Windows OS.

MS WORD is an example of Application Software.

Key Points

Application Software - Application software is a program or group of programs designed for end-users. Examples of an application include a word processor, a spreadsheet, an accounting application, a web browser, an email client, a media player, a file viewer, simulators, a console game, or a photo editor.

Additional Information

1. System Software - System software is software designed to provide a platform for other software. Examples of system software include operating systems like macOS, GNU/Linux, Android and Microsoft Windows, computational science software, game engines, industrial automation, and software as a service application.

2. Operating Software - An Operating System (OS) is an interface between a computer user and computer hardware. An operating system is software that performs all the basic tasks like file management, memory management, process management, handling input and output, and controlling peripheral devices such as disk drives and printers. Five of the most common operating systems are Microsoft Windows, Apple macOS, Linux, Android, and Apple's iOS.

3. Translating Program - A translator is a programming language processor that converts a computer program from one language to another. It takes a program written in source code and converts it into machine code. It discovers and identifies the error during translation.

Thus, option 3 is the correct answer.

The correct answer is a file server.

Key Points

• A file server is used to manage files on a server where it can be uploaded, shared or downloaded by other available systems which are connected to that network.
• It is a central server on a computer network that enables connected clients to access the server’s storage capacities.
• File servers offer users a central storage place for files on internal data media, which is available to all approved clients.
•  The server administrator defines strict guidelines regarding which client have access rights -
  • For example, the design or file authorizations of the particular file system empower the administrator to set which files can be seen and opened by a specific client or client group and whether information must be seen or added altered, or erased. 
• With file servers connected with the web and designed appropriately, clients can't just access the files through the neighborhood organization but also benefit from remote access. 
• This enables files to be accessed and saved on the file server even when users are on the go.
• All modern operating systems such as Windows, Linux, or macOS can be used on a file server, although the devices available in the network need to be compatible with the operating system.

The correct answer is Permanent magnetic storage.

Hard disk: 

• A hard disk drive (sometimes abbreviated as a hard drive, HD, or HDD) is a non-volatile data storage device.
• Hard disk, Magnetic storage medium for a microcomputer. 
• Hard disks are flat, circular plates made of aluminum or glass and coated with magnetic material. 
• Hard disks for personal computers can store up to several gigabytes (billions of bytes) of information.

Important Points

Views in windows explorer:

1.) Thumbnail view:

In the thumbnails view of windows explorer, one can see miniature images of graphics and HTML files and previews of file contents.

2.) Filmstrip view:

This filmstrip view displays a large version of the selected picture in the top right-hand pane of windows explorer and a smaller version of all pictures in the folder in the bottom right-hand pane.

3.) Tiles view:

The tiles view shows medium-sized icons for your items, as well as basic details. While not as detailed as the content or details views, the layout of the tiles view is a useful mix between medium icons and content.

4.) List view:

The list view is used to display a collection of items that can be displayed using other different views.

The correct answer is ​MS Excel.

Important Points

A workbook is another word for your Excel file. When you start Excel, click Blank workbook to create an Excel workbook from scratch.

​Additional Information

• The computer was invented by Charles Babbage.
• Different Generations of Computer-
  • First Generation- 1946-1959, Vacuum tube-based
  • Second Generation- 1959-1965, Transistor-based
  • Third Generation- 1965-1971, Integrated Circuit based
  • Fourth Generation- 1971-1980, VLSI microprocessor-based
  • Fifth Generation-  1980-onwards, ULSI microprocessor-based

The correct answer is .wav.

• The Windows sound file has the extension .wav.
• WAV or Waveform Audio File Format was developed jointly by Microsoft and IBM as an audio file standard for storing digital audio on a PC.
• WAV format generally contains raw and uncompressed audio streams but has the specification for containing compressed audio too.
• WAV files are widely used, and because of this, many programs can open them on different platforms—Windows Media Player, Winamp, iTunes, VLC, QuickTime, etc.

Additional Information

Steps to uninstall a program

• To uninstall an application, use the uninstall program provided by Windows 7. Start by clicking on the Windows icon.
• Click on Control Panel >Program> Program & features.
• Windows then lists all programs that were installed using Windows Installer. Select the program you want to uninstall by clicking on it. 
• Click at the top on Uninstall/Change.
• Confirm the uninstall process by clicking on Yes.

Therefore, Program & Features is the correct answer

Software is nothing but a set of instructions.

Softwares are majorly classified into two categories:

1) System Software

2) Application Software

• Application Software also referred to as end-user programs or productivity programs is software that aids the user in executing tasks like doing online research, jotting down notes, setting an alarm, graphics designing, keeping logs of accounts, performing calculations, or even playing games. They lie above the system software.
• They are different from system software in a way that they are used by the end-user and are specific in their functionality or tasks and perform the task that they are created to do. For example, the application Browser is specifically designed for the purpose of browsing the internet, or MS PowerPoint is an application used specifically for making presentations.
• Adobe Photoshop, MS Word, Antivirus Softwares are examples of Application Software.

Features of application software are as follows:

• Close to the user
• Easy to design
• More interactive
• Slow in speed
• Generally written in a high-level language
• Easy to understand
• Easy to manipulate and use
• Bigger in size and requires large storage space

System software:

• The system software is the set of programs that enables your computer's hardware devices and Application software to work together. 
• The system software is software designed to provide a platform for other software.
• System Software is designed to control the operation and extend the processing functionalities of a computer system.

Mail Merge:

• Mail merge consists of combining mail and letters and pre-addressed envelopes or mailing labels for mass mailings from a form letter.
• This feature is usually employed in a word processing document that contains fixed text (which is the same in each output document) and variables (which act as placeholders that are replaced by text from the data source).
• Some word processors can insert content from a database, spreadsheet, or table into text documents.
• It is a powerful tool for writing a personalized letter or e-mail to many people at the same time.
• It imports data from another source such as a spreadsheet and then uses that to replace placeholders throughout the message with the relevant information for each individual that is being messaged.

Advantage of Mail Merge:

1) It saves time and efforts

2) Producing mass mailings is much simplified, especially compared to the process of preparing individual letters or envelopes to many people.

Note:

Mail join, Mail copy, Mail insert are not computer terminologies.

Therefore, Mail Merge enables us to send the same letter to different persons in MS Word.​

The correct answer is Run need-based applications.

Important Points

Computer literacy is defined as the knowledge and ability to use computers and related technology efficiently, with skill levels ranging from elementary use to computer programming and advanced problem-solving.

Additional Information

• Different Generations of Computer-
  • First Generation- 1946-1959, Vacuum tube-based
  • Second Generation- 1959-1965, Transistor-based
  • Third Generation- 1965-1971, Integrated Circuit based
  • Fourth Generation- 1971-1980, VLSI microprocessor-based
  • Fifth Generation-  1980-onwards, ULSI microprocessor-based
• The Computer was invented by Charles Babbage