Operating Systems MCQ Quiz - Objective Question with Answer for Operating Systems - Download Free PDF

Oracle is NOT correct.

• Among the options, only Oracle is NOT an operating system.

Key Points

• Oracle Corporation is an American multinational software company headquartered in Austin, Texas.
  • It was the second-largest software company in the world by revenue and market capitalization.
• An operating system (OS) is software that manages computer hardware and software resources while also providing common functions for computer programmes.
  • Time-sharing operating systems plan tasks to make the most of the system's resources.
  • They may also contain accounting software for cost allocation of processor time, storage, printing, and other resources.

Additional Information

• Examples of Operating systems are:
  • Apple macOS.
  • Microsoft Windows.
  • Google's Android OS.
  • Linux Operating System.
  • Apple iOS.
  • Ubuntu.
  • DOS.

The correct answer is System Software.

Key Points

• System software:- System software controls internal computer operations. In either case, the system software area is characterized by heavy interaction with computer hardware; heavy usage by multiple users; a concurrent operation that requires scheduling, resource sharing, and sophisticated process management; complex data structure; and multiple external interfaces.

Additional Information 

• System software is a collection of programs written to service other programs.
• Some system software (e.g., compilers, editors, and file management utilities) processes complex, but determinate, information structures.
• System software is programs that manage the resources of the computer system and simplify applications programming.
• System software is made to be as fast as possible to provide an effective platform for higher-level software.a

• The system has three basic types of software:

• Application programs
• device drivers
• operating systems

The correct answer is Linux.

Key Points

• Linux is a multiuser and open-source operating system.
• ​Open Source operating systems are released under a license where the copyright holder allows others to study, change as well as distribute the software to other people.​
• Linux
  • It was invented by Linus Torvalds in the year 1991.
  • It builds communication between the hardware and the software.
  • It is released under the GNU General Public License (GPL).
  • It is a very secure operating system, hence malware and viruses cannot attack the operating system.
  • It is also multiprogramming, and multitasking like other kinds of operating systems and as well as it supports multi-user.
  • The Linux operating system is free to install in the system.​
• Solaris
  • It is a Unix-like operating system developed by Sun Microsystems (later acquired by Oracle).​
  • Solaris is developed under a proprietary development model, and only the source for open-source components of Solaris 11 is available for download from Oracle.
  • Solaris is known for its scalability, especially on SPARC systems, and for originating many innovative features such as DTrace, ZFS and Time Slider.
• Unix
  • ​It is a computer operating system developed in the 1960s at the Bell Labs research centre.
  • It was written in Assembly Language.
  • UNIX can support a large number of users and processes simultaneously, making it well-suited for use on servers and other high-performance systems.
  • UNIX was designed to be portable, meaning that it can be easily adapted to run on different hardware platforms. This has made it a popular choice for use on a wide variety of computers, including mainframes, servers, and desktop systems.
• Windows 7
  • It is the Microsoft Windows operating system (OS) released commercially in October 2009 as the successor to Windows Vista.​
  • It is built on the Windows Vista kernel.
  • Windows 7 also includes a feature called "Windows Touch" that supports touchscreen input and multitouch functionality.
  • It was replaced in November 2012 by Windows 8.

The correct answer is Operating system.

Key Points

• The first thing a computer has to do when it is turned on is to start up a special program called an operating system.
• The operating system’s job is to help other computer programs to work by handling the messy details of controlling the computer’s hardware.

Important Points

• An operating system is a software or a program that manages computer hardware, software resources, and provides common services for computer programs.
  • It is an interface between the computer user and computer hardware.
  • Some popular operating system include Linux operating system, Windows operating system, VMS, OS/400, macOS, etc.
  • Some of the important functions of an operating system are-
    • Memory Management
    • Processor Management
    • Device Management
    • File Management
    • Security
    • Job Accounting
    • Co-ordination between other software and users.

The correct answer is .exe.

Key Points

• .exe is the file extension used for executable files on Windows operating systems, which are designed to run programs and install software.
• Executable files contain machine code that is directly executed by the computer's CPU, making them essential for software deployment.
• Windows operating systems use .exe files for a variety of tasks, including software installation, application launching, and script execution.
• Security features such as User Account Control (UAC) often prompt users before allowing .exe files to run, helping to prevent unauthorized or malicious activity.

Additional Information

• File Extensions and Their Uses
  • .mp3 - A file extension for audio files that use the MPEG-1 or MPEG-2 Audio Layer III compression standard, commonly used for music and podcasts.
  • .txt - Represents plain text files that contain unformatted text, used for simple documents and notes.
  • .jpg - A commonly used file extension for images, employing the JPEG (Joint Photographic Experts Group) compression method, widely used for digital photos.
• Executable File Security
  • Executable files can be a vector for malware and other security threats if downloaded from untrusted sources.
  • Users are advised to install antivirus software and keep their systems updated to mitigate risks associated with .exe files.
• Alternative Executable Formats
  • .msi - Microsoft Installer files, used for software installation, updates, and configuration.
  • .bat - Batch files containing a series of commands to be executed by the Windows command interpreter.

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 Safari.

• Safari is not a search engine.

Key Points

• Safari is a browser for IOS. WebKit is the search engine used as a default search engine for Safari.
• IOS is used only in Apple phones.
• Search Engines:
  • These are websites available on the Internet that provide information on any topic that you want.
  • Search engines contain a programme that collects information from other websites.
  • This information is then stored according to the category it belongs to, e.g., websites about music will be stored in a category named Fine Arts. Examples of popular search engines are Yahoo, Alta Vista and Google.

Additional Information

• Yahoo was founded by Jerry Yang, David Filo.
• Ask was founded by David Warthen, Garrett Gruener.
• Bing is a search engine operated under Microsoft.

Windows is correct.

Key Points

• Among the options, only Windows is NOT an open-source operating system.
• Windows is a closed source operating system marketed by Microsoft.
• Microsoft first introduced the Windows operating system on 20 November 1985.
• Closed Operating Systems are built with numerous codes and complex programming and that is called source code. 
• An Open-source Operating System is the Operating System in which source code is visible publically and editable.
• The operating system is a collection of programs that controls the overall operations of the computer.
• An operating system is a System software in computers.
• It works as an interface between the user and computer hardware components.
• Examples of operating systems are:
  • Linux.
  • Unix.
  • DOS.
  • Windows.
  • Ubuntu.
  • Embedded operating system.
  • OpenBSD.
  • Mac OS.

Mistake Points

Windows is an operating system, but it is NOT an open-source operating system.

The correct answer is Application

Key Points

• An application, or application program, is a software program that runs on your computer. Web browsers, e-mail programs, word processors, games, and utilities are all applications. The word "application" is used because each program has a specific application for the user.
• In contrast, system software consists of programs that run in the background, enabling applications to run. These programs include assemblers, compilers, file management tools, and the operating system itself. Applications are said to run on top of the system software since the system software is made of "low-level" programs. While system software is automatically installed with the operating system, you can choose which applications you want to install and run on your computer.
• Macintosh programs are typically called applications, while Windows programs are often referred to as executable files. This is why Mac programs use .APP file extension, while Windows programs use the .EXE extension. Though they have different file extensions, Macintosh and Windows programs serve the same purpose and can both be called applications.

The correct answer is Windows, Icons, Menus.

• In a GUI-based operating system, the graphical user interface is based on Windows, Icons, Menus.

Key Points

• A  graphical user interface(GUI) uses windows, icons, and menus to perform various commands, such as opening, deleting, and moving files.
• A GUI operating system is primarily navigated using a mouse, a keyboard can also be used via keyboard shortcuts or arrow keys. 

The correct answer is Database management.

Key Points

• An operating system is a program on which application programs are executed and acts as a communication bridge (interface) between the user and the computer hardware. 
• The main task an operating system carries out is the allocation of resources and services, such as the allocation of memory, devices, processors, and information.
• The operating system also includes programs to manage these resources, such as a traffic controller, a scheduler, a memory management module, I/O programs, and a file system. 

Additional Information

• Memory Management 
  • The operating system manages the Primary Memory or Main Memory.
  • Main memory is made up of a large array of bytes or words where each byte or word is assigned a certain address.
  • Main memory is fast storage and it can be accessed directly by the CPU. For a program to be executed, it should be first loaded in the main memory.
• Processor Management 
  • In a multiprogramming environment, the OS decides the order in which processes have access to the processor, and how much processing time each process has.
  • This function of OS is called process scheduling.
• File Management 
  • A file system is organized into directories for efficient or easy navigation and usage. These directories may contain other directories and other files.
• Database management system (DBMS)
  • It is a software package designed to define, manipulate, retrieve and manage data in a database.
  • A DBMS generally manipulates the data itself, the data format, field names, record structure, and file structure.
  • It also defines rules to validate and manipulate this data. 

The correct answer is the Operating system.

Important Points

• Linux is an open-source Unix-like operating system, Linux is based on the Linux kernel.
• Linux was developed by Linus Torvalds, Linux was released in September 1991.
• Linux was written in C and assembly language. The user interface of Linux is KDE plasma, LXDE,  elementary OS, etc.

Additional Information

• Database programs, web browsers, word processors, image editors, etc are some of the examples of application software.
• Java, C, Python, C++, JavaScript are some of the examples of Programming languages.
• IBM PC DOS operating systems, the Turbo Pascal compiler are some of the examples of assembly languages.

The correct answer is Operating systems.

Key Points

• Operating systems is not an application software.
• It is system software that manages computer hardware and software resources and provides common services for computer programs.
• Application software refers to programs that are designed to perform specific tasks for the user, such as creating documents, editing photos, or managing data.

Additional Information

The correct answer is computer software.

Key Points

• Computer software includes both system and application software, and it's the component that enables user interaction through a user interface.
  • The user interface (UI) is a software feature that allows users to interact with the computer, enter commands, and receive feedback.
  • The UI can be graphical (GUI) or text-based (CLI), and is present in operating systems, apps, and other programs.
  • Therefore, UI is not exclusive to the operating system but spans across all types of software.
  • Examples of software with UI include:
    • Operating systems like Windows, Linux, macOS.
    • Applications like Microsoft Word, Google Chrome, VLC Media Player.
    • Mobile apps and development tools.

Additional Information

• Operating System is a type of system software that manages hardware and provides core UI elements like taskbars, file explorers, etc.
• Computer Network refers to interconnected systems that share resources but are not the source of UI themselves.
• Hardware refers to the physical components like keyboard, monitor, CPU – which are used by UI but do not provide it themselves.

The correct answer is Scala.

• Scala is a type-safe JVM programming language that incorporates both object-oriented and functional programming.
• It is used for general software applications.
• It was firstly introduced in 2003.

Important Points

• An operating system or "OS" is software that communicates with the hardware and allows other programs to run.
• It is comprised of the system software, or the fundamental files your computer needs to boot up and function.
• Common desktop operating systems include Windows, Unix, DOS, Linux and Android is a mobile operating system.