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

The correct answer is Ctrl + W.

Key Points

• To quickly close the current application, press Alt+F4.
• This works on the desktop and even in new Windows 8-style applications.
• To quickly close the current browser tab or document, press Ctrl+W.
• This will often close the current window if there are no other tabs open. 

Additional Information

Important Shortcut keys used in MS Word:

• Cut the selected content to the Clipboard - Ctrl+X
• Copy the selected content to the Clipboard - Ctrl+C
• Paste the contents of the Clipboard -Ctrl+V
• Increase the font size by 1 point.- Ctrl+]
• Center the text - Ctrl+E
• Align the text to the left - Ctrl+L 

The correct option is (4)

Explanation:- 

Keyboard shortcuts are keys or combinations of keys that provide an alternative way to do something that you would typically do with a mouse.

Windows logo key + D → Display and hide the desktop.

Additional InformationSome shortcuts keys are given below:

Windows Key + H  → Launch voice typing. (updated in Windows 11.)

Alt + Ctrl + H →  Popular programs using this shortcut.

Alt + Ctrl + D → preview the desktop in full-screen mode.

The correct answer is Helix.

• Multitasking is the capability of the operating system of running several applications at the same time.
• It is therefore deeply related to the OS capability for managing shared resources, and in particular for arbitrating conflicts resulting from resource over-commitment.
• In a multitasking environment, the totality of the computer’s resources (memory, files, CPU time) is allocated to different applications, and they are managed in such a way that each one of them gets a share according to specific priority policies.

Key Points

• In 1961, the LEO III emerged, which was a British computer machine that had enabled the use of multitasking in operating systems. 
• The term multitasking, when paired with an operating system, refers to the users being allowed to accomplish more than one computative task, for instance.
• Types of Multitask Operating Systems are:
  • Preemptive Multitasking.
  • Cooperative Multitasking.

Important Points

• An Operating System does the following to carry out activities related to multitasking:
  • Initially, the user will give instructions to the operating system or to a program/application directly, and they will receive an immediate response.
  • To display this quick response, the operating system handles multitasking by “slicing” some of the processors operating capability to that program.
• Advantages of a Multi-Task Operating System are:
  • Time-sharing.
  • Handles Multiple Users.
  • Protected Memory.
  • Efficient virtual memory.
  • Programs can run in the background.

Additional Information

The correct option is File allocation Table

Key Points 

• The file system known as File Allocation Table (FAT) was created for personal computers. It was initially created in 1977 for use with floppy discs before being modified for use with hard discs and other hardware.
• An operating system maintains a file allocation table (FAT) on a hard drive that shows a map of the clusters—the fundamental units of logical storage on a hard disk—in which a file has been stored.
• This table, which is statically allocated when the drive is formatted, provides an index of the system's files. Each cluster's entry is included (a data storage area).

Additional Information 

• Disk sector 0, or the very first sector on a disc, is where the file allocation table is found. Most operating systems still support an older style of file system storage called the file allocation table, or FAT.
• The NTFS file system is more efficient at managing disc space and has higher disc utilization than FAT32. Additionally, NTFS read and write speeds are quicker than FAT32's.
• File Allocation Table, also known as FAT32. FAT32 is a development of earlier file systems in which data is stored in 32-bit blocks.

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 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 Alt + D.

Key Points

• A ledger is the actual account head to identify your transactions and are used in all accounting vouchers.
• Alt + D is the keyboard command used to delete the ledger created in tally.
  • Go to Gateway of Tally > Accounts Info. > Ledgers > Alter > Press Alt+D .
• Users can delete any ledger in Tally if the balance does not exist in that particular ledger.

Additional Information

• Alt+C is the short key to access Auto Value Calculator in the amount field during voucher entry.
• Ctrl+C is the short key to create Cost Center from the Ledger creation screen.
• Ctrl+B is the short key to create a Budget from the Ledger creation screen.
• Ctrl+G is the short key to create an account Group from the Ledger creation screen.

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.