Computer Awareness MCQ Quiz - Objective Question with Answer for Computer Awareness - Download Free PDF

The correct answer is Arithmetic Logic Unit.Key Points

ALU:

• An arithmetic logic unit (ALU) is a digital circuit used to perform arithmetic and logic operations.
• It represents the fundamental building block of the central processing unit (CPU) of a computer. Modern CPUs contain very powerful and complex ALUs.
• Most of the operations of a CPU are performed by one or more ALUs, which load data from input registers.

Additional Information

 Control Unit:

• The control unit is a part of the Central Processing Unit (CPU). 
• The control unit generates the appropriate timing and control signals for all the operations involved with a computer.
• The flow of data between the processor, memory, and other peripherals is controlled using the timing signals of the control unit.
• The main function of a control unit is to fetch the data from the main memory, determine the devices and the operations involved with it, and produce control signals to execute the operations.

The correct answer is Ctrl + P.

Key Points

• Ctrl + P is the universal shortcut used to open the Print dialog box in most Microsoft Office applications, including MS Excel 365.
• Using this shortcut allows users to configure printing settings such as selecting the printer, adjusting page orientation, and specifying print ranges.
• It is a time-saving alternative to navigating through the "File" menu to access the print feature.
• This shortcut is also consistent across different versions of MS Excel, making it easy for users to remember and use.
• In addition to Ctrl + P, Excel also provides options to customize printing through the "Page Layout" tab for advanced settings.

Additional Information

• Keyboard Shortcuts in Excel
  • Keyboard shortcuts are combinations of keys that perform a specific function, saving time and enhancing productivity.
  • Examples include Ctrl + S (Save), Ctrl + N (New Workbook), and Ctrl + O (Open).
  • Using shortcuts reduces dependency on the mouse and accelerates workflow in Excel.
• Print Features in Excel
  • The Print dialog box in Excel allows users to select specific sheets, ranges, or the entire workbook for printing.
  • Advanced options include "Print Selection," "Print Area," and "Fit to Page" for customized outputs.
  • The "Print Preview" option helps users ensure proper formatting before finalizing the print.
• Page Layout and Printing
  • The "Page Layout" tab in Excel provides options to set margins, orientation (portrait/landscape), and scaling for printing.
  • Headers and footers, gridlines, and print titles can also be configured here.
• Excel 365 Features
  • MS Excel 365 is part of Microsoft 365 and offers cloud-based functionality for real-time collaboration.
  • It includes various tools such as Power Query, advanced charting options, and AI-driven insights to enhance usability.
  • Printing features in Excel 365 remain consistent with earlier versions but include enhanced compatibility with cloud printers.

The correct answer is Read-Only Mode.

Key Points

• Read-Only Mode in MS Excel allows users to open and view a workbook while restricting editing and modifications.
• This feature is useful for sharing sensitive data that needs to be protected from unauthorized changes.
• To enable Read-Only Mode, you can save the workbook and select the "Tools > General Options" in the Save As dialog box, then set a password for editing.
• Users can view the file without entering the password, but they cannot make changes unless they have the editing password.
• Read-Only Mode ensures data integrity and helps prevent accidental or intentional modifications.

Additional Information

• Protected View:
  • Files opened from potentially unsafe locations (e.g., email attachments) are opened in Protected View to prevent malicious content from affecting your system.
  • Protected View allows viewing but blocks editing until explicitly enabled by the user.
• Workbook Password Protection:
  • Excel allows users to set passwords to restrict access to the workbook or worksheet.
  • Passwords can be set for opening and/or editing the file.
• Track Changes Feature:
  • Excel provides the "Track Changes" feature to monitor modifications made to a workbook collaboratively.
  • It helps identify who made edits and what changes were made.
• Freeze Panes:
  • This feature is used to lock specific rows or columns while scrolling through a worksheet.
  • It enhances visibility but does not provide security or restrict editing.

The correct answer is The text retains its original formatting from the source..

Key Points

• Keep Source Formatting is one of the paste options available in MS-PowerPoint 2019 to retain the original look of the copied text.
• When text is pasted using this option, it preserves the font style, size, color, and other formatting from the source document.
• This feature is useful when the copied text has specific formatting that needs to remain unchanged on the destination slide.
• The pasted text does not adopt the theme fonts or colors of the destination slide but retains its original formatting.
• Users can access this option by right-clicking on the slide and selecting "Paste Options," followed by "Keep Source Formatting."

Additional Information

• Paste Options in MS-PowerPoint:
  • Keep Source Formatting: Retains the original formatting of the text from the source.
  • Use Destination Theme: Adopts the theme fonts and colors of the destination slide.
  • Picture: Converts the copied text into an image.
  • Text Only: Pastes the text without any formatting.
• Theme Fonts and Colors:
  • These are predefined fonts and colors associated with the slide's design.
  • Using the destination theme ensures uniformity across all slides in a presentation.
• Automatic Text Adjustment:
  • MS-PowerPoint can automatically resize text to fit within placeholders.
  • This feature is called "AutoFit" and can be enabled or disabled as needed.
• Clipboard Functionality:
  • The clipboard temporarily stores copied text or objects for pasting.
  • In MS-PowerPoint, users can access advanced clipboard options for formatting control.

The correct answer is Pressing Ctrl + N.

Key Points

• Pressing Ctrl + N in MS PowerPoint creates a new presentation, not a new slide within an existing presentation.
• To add a new slide in MS PowerPoint, you can use Ctrl + M, which is a shortcut specifically for creating new slides.
• The 'New Slide' option located under the Home tab on the ribbon allows users to add a new slide to the presentation.
• Right-clicking within the slide sorter pane and selecting 'New Slide' is a valid method to add new slides.
• Ctrl + N is often confused with commands for adding slides but is exclusively intended for creating a brand new presentation file.

Additional Information

• Slide Shortcuts in MS PowerPoint:
  • Ctrl + M: Adds a new slide to the current presentation.
  • Ctrl + D: Duplicates the currently selected slide.
  • Ctrl + Shift + Up/Down: Moves slides within the slide sorter pane.
• Understanding Ctrl + N:
  • Function: Used to create a new presentation in MS PowerPoint, not a new slide.
  • It is also applicable in other Microsoft Office applications, such as Word and Excel, to create new documents or workbooks.
• Slide Sorter Pane:
  • Located on the left side of the PowerPoint interface, it displays a thumbnail view of all slides.
  • Allows users to rearrange slides, delete slides, or add new slides by right-clicking.
• Ribbon Interface:
  • The ribbon is the toolbar at the top of MS PowerPoint containing tabs such as Home, Insert, Design, etc.
  • The 'New Slide' option under the Home tab is one of the most commonly used methods to add slides.

The correct answer is Second.

Key Points

• Second-generation computers were based on Transistors instead of vacuum tubes.
• 1959-1965 is the period of second-generation computers.

Additional Information

• List of generations of computers:

Concept:

• Downloading: It is a process of transferring files from the webserver(from the internet) to the user's computer.
• In this process, memory is required in the user's computer.
• Only users can access this file.

Explanation:

• Uploading: It is a process of transferring files from the user's computer to the webserver(on the internet).
• In this process, memory is required in the webserver.
• Anyone can access the file using the internet.
• FTP: File Transfer Protocol
• It is a set of rules for transferring data from one system to another on the internet.
• JPEG: Joint Photographic Expert Group.
• It is a graphic file format used for saving images.
• Definition of downloading matches with given sentence therefore option 1 is the correct answer.

Additional Information

•  Different file formats are used known as the computer file extension.

The correct answer is Operating system.

Key Points

• UBUNTU is an example of an operating system.
• The operating system is a collection of programs that controls the overall operations of the computer.
• Operating systems are of two types namely, Open-source operating systems and Closed source operating systems.
• UBUNTU is free and open-source software.
• Operating systems works as an interface between a user and computer hardware components.
• Examples of operating systems are:
  • Linux
  • Unix
  • DOS
  • Windows
  • Ubuntu
  • Embedded operating system
  • OpenBSD
  • Mac OS

Additional Information

• Malware is a file or code that is designed to damage and destroy computers and computer systems.
  • Viruses, worms, Trojan viruses, spyware are the common examples of malware.
• A web browser is an application used to access and view websites.
  • Google Chrome, Mozilla Firefox, Apple Safari are the common examples of web browsers.

The correct answer is Common Business Oriented Language. 

• COBOL stands for Common Business Oriented Language.
  • It is first developed in 1960 by the CODASYL Committee (Conference on Data Systems Languages).
  • It is primarily designed for use in business-oriented applications.

Additional Information

• Some important Abbreviations

The correct answer is Query language.

Key Points

The various generations of computers are listed below:

The correct answer is Integrated circuits.

Key Points

Third Generation (1964-1977):

• This generation was introduced by the development of a small chip consisting of the capacity of the 300 transistors
• These Integrated Circuits (IC)s are popularly known as Chips.
• So it is quite obvious that the size of the computer got further reduced
• Some of the computers developed during this period were IBM-360, ICL-1900, IBM-370, and VAX-750
• Higher-level language such as BASIC (Beginners All-purpose Symbolic Instruction Code) was developed during this period​

Additional Information

The correct answer is F1.

Key Points

1. F1 function key is used for opening help.
2. ​A function key is a key on a computer keyboard to perform certain actions.
3. The function keys are arranged on the top of the computer keyboard numbered across from F1 to F12.
4. The keys are frequently used in combination with other keys such as the CTRL key, the ALT key, and the SHIFT key.
5. The function keys provide some interesting shortcuts for common computer functions that can be useful tools in everyday computing.

Additional InformationSome of the use of function keys:

​The correct answer is Portable Network Graphics.

• Portable Network Graphics is the full form of PNG in the computer image format.

Key Points

• PNG (Portable Network Graphics) PNG (Portable Network Graphics)
• PNG is a format for storing bit-mapped or raster images on the computer.
• PNG is also known as a successor of GIF format images.
• It uses the less compression technique to save images like GIF 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 256 colors only in GIF.
• PNG has a file extension ".png".
• PNG provides low-resolution images that look good and load quickly.
• The amount of transparency can be controlled.
• The format supports interlacing, and it can be developed faster than the GIF format.
• PNG format also supports Gamma correction.
• Images can be saved by using true color.
• It can also be saved by using palette and grayscale formats provided by GIF.

Additional Information 

• 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.

The correct answer is CTRL + N.

Key Points

• Create a new document with Ctrl+N. 

Additional Information

• Basic computer shortcut keys
  • Ctrl + M -- Indent the paragraph.
  • Ctrl + B -- Bold highlighted selection.
  • Ctrl + D -- Font options.
  • Alt + F--File menu options in the current program.
  • Alt + E--Edits options in the current program.
  • F1--Universal help (for any sort of program).
  • Ctrl + A--Selects all text.
  • Ctrl + X--Cuts the selected item.
  • Ctrl + Del--Cut selected item.
  • Ctrl + C--Copy the selected item.
  • Ctrl + Ins-- Copy the selected item.
  • Ctrl + V--Paste the selected item.
  • Shift + Ins -- Paste the selected item.
  • Home -- Takes the user to the beginning of the current line.
  • Ctrl + Home--Go to the beginning of the document.
  • End -- Go to the end of the current line.
  • Ctrl + End -- Go to the end of a document.
  • Shift + Home -- Highlight from the current position to the beginning of the line.
  • Shift + End -- Highlight from the current position to the end of the line.
  • Ctrl + (Left arrow) -- Move one word to the left at a time.
  • Ctrl + (Right arrow) -- Move one word to the right at a time.

The correct answer is PARAM 8000.

Key Points

• PARAM 8000 is considered to be the first supercomputer developed in India.
• PARAM is a series of supercomputers developed by C-DAC in Pune.
• PARAM supercomputers developed under the leadership of Vijay P Bhatkar.
• Supercomputers developed by India are EKA, PARAM, Kabru, Blue Gene.
• Pratyush is India's fastest supercomputer.

Additional Information

• SAGA 220 is the supercomputer developed by ISRO in 2011.
• PARAM Yuva II is the fastest in the prestigious PARAM series of Supercomputers built in India.
• SAHASRA T provides service in the fields of aerospace engineering, meteorology predictions, and astrological simulation.
• Seymour Cray is considered the father of the supercomputer.
• CDC 6600 is the world's first supercomputer.

 Important Points

• As of June 2023, the AIRAWAT supercomputer is the fastest supercomputer in India, having been ranked 75th fastest in the world in the TOP500 supercomputer list.