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

The correct answer is Multiprogramming.

Key Points

• Multiprogramming is a feature of an operating system that allows more than one program to run concurrently.
• It is designed to keep the CPU busy by running multiple programs simultaneously.
  • This increases the efficiency and utilization of the CPU.
• Multiprogramming helps in optimizing the use of resources and improving the system's performance.
• It involves the operating system managing multiple jobs by switching between them efficiently.

Additional Information

• Multiprocessing refers to the use of two or more CPUs within a single computer system.
  • This allows for parallel processing and improved performance for computational tasks.
• Multitasking is the ability of an operating system to execute multiple tasks (processes) simultaneously.
  • It involves managing tasks by allocating CPU time slices to each task.
• Threading involves dividing a process into smaller threads that can run concurrently.

The correct answer is 'MS-DOS'.

Key Points

• MS-DOS (Microsoft Disk Operating System) is the oldest Textual User Interface (TUI) operating system created by Microsoft Corporation.
• It is an example of an operating system with a command-based interface.
• It is a completely user-dependent operating system (OS).
• MS-DOS is a non-graphical, line-oriented, command-driven OS.
• It has a relatively simple but not user-friendly interface.
• It prompts to enter an MS-DOS command as input.

Hence, the correct answer is MS-DOS.

Additional Information

Let's have a look at other options:

• Android
  • ​Android is a mobile operating system.
  • It is based on a modified version of the Linux kernel and other open-source software.
  • It is designed primarily for touchscreen mobile devices such as smartphones and tablets.
  • Android is developed by a consortium of developers known as the Open Handset Alliance and commercially sponsored by Google.
• Ubuntu
  • ​Ubuntu is a Linux distribution composed mostly of free and open-source software.
  • Ubuntu is officially released in three editions: Desktop, Server, and Core for Internet of things devices and robots.
  • Ubuntu is a popular operating system for cloud computing, with support for OpenStack.
  • Ubuntu is released every six months, with long-term support (LTS) releases every two years.
• iOS
  • ​iOS is a mobile operating system created and developed by Apple Inc. exclusively for its hardware.
  • It is the world's second-most widely installed mobile operating system, after Android.

The correct answer is operating system.

Key Points

• The operating system is a collection of applications that manages the computer's overall activities.
  • A computer's operating system is a piece of software that runs on the computer.
  • A User Interface is the part of the operating system that allows the user to enter and receive information.
  • The operating system serves as a bridge between applications and computer hardware for hardware functions such as input and output and memory allocation. 
  • It serves as a link between the user and the computer's hardware.
  • The following are some examples of operating systems:
    • Linux.
    • Unix.
    • DOS.
    • Windows.
    • Ubuntu.
    • Embedded operating system.
    • OpenBSD.
    • Mac OS.

Additional Information

• In a computer network computers are connected to each other for communication.
  • LAN, MAN, and WAN are the three types of computer networks.
• Hardware is the physical equipment and components of a computer that can be seen and touched.
• Software is a set of instructions given to computers written in a particular language to control and coordinate computer hardware.

The correct answer is Right click on the desktop and selects the option 'Personalize'.

Key Points

• After the completion of the booting process, the first screen which appears on the monitor in a Windows system is known as a desktop. On the desktop, different icons of the applications can be seen.
• There are some steps used for changing the desktop background. 
  • First, select the 'start'.
  • Then select 'Settings' and open it.
  • Then click on 'Personalization' and select the option called 'Background'.
    or,
  • Right-click on the desktop and selects the option 'Personalize'.
• The Personalize option helps the user to change the background or select Picture of the desktop.
  

The correct answer is GNU/Linux. (2)

Key Points

• GNU/Linux is a free and open-source operating system. 
  • GNU/Linux is a Unix-like operating system made up of different OS components and services that create the Linux OS.
  • In a GNU/Linux system, Linux is the kernel component.

Additional Information

• MAC Address (Media Access Control Address) is a 12-digit hexadecimal number assigned to each device connected to the network. 
• Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen mobile devices such as smartphones and tablets.
• Windows- The Windows operating system (Windows OS) for desktop PCs is more formally called Microsoft Windows and is actually a family of operating systems for personal computers.

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 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 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 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 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 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 operating system.

Key Points

• The operating system is a collection of applications that manages the computer's overall activities.
  • A computer's operating system is a piece of software that runs on the computer.
  • A User Interface is the part of the operating system that allows the user to enter and receive information.
  • The operating system serves as a bridge between applications and computer hardware for hardware functions such as input and output and memory allocation. 
  • It serves as a link between the user and the computer's hardware.
  • The following are some examples of operating systems:
    • Linux.
    • Unix.
    • DOS.
    • Windows.
    • Ubuntu.
    • Embedded operating system.
    • OpenBSD.
    • Mac OS.

Additional Information

• In a computer network computers are connected to each other for communication.
  • LAN, MAN, and WAN are the three types of computer networks.
• Hardware is the physical equipment and components of a computer that can be seen and touched.
• Software is a set of instructions given to computers written in a particular language to control and coordinate computer hardware.

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.