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

The correct answer is 1995.

• The JavaScript Programming language came into existence in 1995.

Key Points

• JavaScript is a programming language used in web development.
• It was developed by Netscape to add dynamic and interactive elements to websites. 
• JavaScript is influenced by Java.
• It is a client-side scripting language.
• A JavaScript code can be inserted anywhere within the HTML of a webpage.

Important Points

• JavaScript is a scripting language that is used to develop websites.
• JavaScript helps to add functionality and behaviors to your website, allowing your website’s visitors to interact with content in many imaginative ways.
• In September 1995, a Netscape programmer named Brandan Eich developed a new scripting language in just 10 days.
• It was originally named Mocha, but quickly became known as LiveScript and, later, JavaScript.

The correct answer is It temporarily holds active program data and instructions to enable fast switching between tasks..

Key Points

• RAM (Random Access Memory) is a volatile memory that temporarily stores data and instructions required by active applications, enabling smooth multitasking.
• In a multitasking operating system, RAM allows quick access to active program data, reducing the need to repeatedly fetch data from slower storage devices like hard drives.
• The operating system utilizes RAM to maintain the state of multiple applications, enabling fast switching between tasks without delays.
• RAM acts as a workspace for the CPU, ensuring that active processes and threads execute efficiently and remain responsive.
• When RAM is insufficient for multitasking, systems may use virtual memory (paging), which is significantly slower compared to physical RAM.

Additional Information

• Volatile Memory:
  • RAM is classified as volatile memory, meaning its contents are lost when power is turned off.
  • This characteristic makes RAM unsuitable for permanent data storage.
• Virtual Memory:
  • When physical RAM is full, operating systems use a portion of the hard drive as virtual memory.
  • Virtual memory is slower than RAM but ensures the system can handle more applications simultaneously.
• Multitasking in Operating Systems:
  • Multitasking allows multiple applications or processes to run concurrently by sharing CPU and RAM resources.
  • Efficient multitasking relies heavily on the speed and capacity of RAM.
• Cache Memory:
  • Cache memory is a smaller, faster type of memory located closer to the CPU than RAM.
  • It stores frequently accessed data to speed up processing tasks further.
• Permanent Storage vs RAM:
  • Permanent storage devices like hard drives and SSDs retain data even after power is turned off.
  • RAM, on the other hand, is temporary storage designed for speed and accessibility during active processes.

The correct answer is Find whole words only.

Key Points

• In MS PowerPoint, the 'Replace' function (Ctrl + H) is used to replace specific text or formats in a presentation.
• The 'Find whole words only' option ensures that only complete words matching the search term are replaced, and not partial matches.
• This feature is particularly useful for avoiding unintended replacements within larger words or phrases.
• The 'Find whole words only' option is available across various Microsoft Office applications like Word and PowerPoint for precise text search and replace operations.
• It eliminates errors caused by replacing fragments of words, ensuring greater accuracy in text editing tasks.

Additional Information

• Replace Function in MS PowerPoint:
  • The Replace function allows users to search for and substitute text or formatting within a presentation.
  • It is accessible under the 'Home' tab in the 'Editing' group or via the keyboard shortcut Ctrl + H.
• Match Case Option:
  • This feature ensures that the search term matches the exact case (uppercase or lowercase) of the text in the presentation.
  • For example, searching for "Power" will not match "power" if 'Match Case' is enabled.
• Use of Wildcards:
  • Wildcards are special symbols (like * or ?) used to represent one or more characters during searches.
  • In PowerPoint, wildcards can be used to find text patterns, but they do not ensure whole word matches.
• Sounds Like (English):
  • This option enables searching for words that sound similar to the search term in English.
  • It is useful for identifying text with potential spelling variations or phonetic matches.
• Applications of Text Replace:
  • It is widely used in editing large documents or presentations for consistency.
  • Common examples include correcting repeated spelling errors or updating outdated terminology.

The correct answer is Dragging moves the text; Ctrl + dragging copies it.

Key Points

• Dragging text with the mouse (using left-click) moves the selected text from its original location to the target location.
• Ctrl + dragging text creates a copy of the selected text at the target location while retaining the original text at its original position.
• This functionality is useful for efficiently reorganizing or duplicating content within a document.
• Both actions involve selecting the text first and then using drag-and-drop techniques to reposition or duplicate it.
• These actions are part of the basic editing and formatting features in MS Word 365, enhancing user productivity.

Additional Information

• Drag-and-Drop Functionality: A feature in MS Word that allows users to move or copy text by clicking and dragging without needing to use cut, copy, and paste commands.
• Ctrl Key Modifier: The Ctrl key acts as a modifier that changes the default behavior of drag-and-drop from moving text to copying text.
• Keyboard Shortcuts: MS Word includes various shortcuts like Ctrl + C (copy), Ctrl + X (cut), and Ctrl + V (paste) for editing tasks.
• Reorganizing Content: Dragging and Ctrl + dragging are practical tools for reorganizing content in lengthy documents efficiently.
• Visual Cue: While dragging, the cursor changes shape (e.g., a small box with text) to indicate whether the action is moving or copying the text.

The correct answer is Switches between open applications.

Key Points

• Pressing Alt + Tab on a computer keyboard allows users to quickly switch between open applications or windows.
• This shortcut provides a visual display of all currently running applications, enabling users to select the desired application for switching.
• The functionality is supported on Windows operating systems, making multitasking more efficient and seamless.
• Holding down the Alt key while repeatedly pressing Tab cycles through the list of open windows in order.
• This feature is particularly useful for users managing multiple tasks or applications simultaneously.

Additional Information

• Task Switching: The Alt + Tab shortcut is a common example of task switching, a feature that enhances productivity by reducing the time required to navigate between open programs.
• Snap Assist: On modern Windows versions (e.g., Windows 10/11), Snap Assist can be used alongside Alt + Tab to organize open applications into split-screen views for better multitasking.
• Task View: Windows also offers a ""Task View"" feature (Win + Tab) that provides a broader overview of open applications and virtual desktops, complementing Alt + Tab functionality.
• Keyboard Shortcuts: Keyboard shortcuts like Alt + Tab are designed to improve workflow efficiency by minimizing reliance on mouse navigation.
• MacOS Equivalent: On MacOS, the equivalent shortcut for switching between open applications is Command + Tab, offering similar functionality for Mac users.

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 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.

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.