Operating System

Introduction 

An Operating System (OS) is system software that acts as an interface between the user and the computer hardware. It manages hardware resources and provides essential services for application software.

Components of an Operating System

  • Kernel: Core of the OS, managing hardware resources and system calls.
  • Shell: Interface between user and OS (CLI or GUI).
  • File System: Organizes and manages files in storage.
  • Device Drivers: Enables communication between OS and hardware devices.

Examples of Popular Operating Systems

  • Windows OS: Developed by Microsoft, widely used in personal computers.
  • Linux OS: Open-source and widely used for servers.
  • MacOS: Developed by Apple for Mac computers.
  • Android & iOS: Mobile operating systems used in smartphones.


Qus. 1 : Which of the following is not a programming language?

  1. UNIX
  2. LISP
  3. BASIC
  4. JAVA
Qus. 2 : Which of the following if not OS

  1. Android
  2. MAC
  3. Samsung
  4. LINUX
Qus. 3 : BOSS OS is developed in

  1. USA
  2. UK
  3. INDIA
  4. China
Qus. 4 : What is the full form of GUI?

  1. Graphical User interface
  2. Geographical user of internet
  3. Giga uses internet
  4. Graphical unlimited interface
Qus. 5 : Which one is the GUI based operating system?

  1. Unix
  2. Linux
  3. DOS
  4. None of these
Qus. 6 : Who handles all the computer functions?

  1. Input
  2. output
  3. operating system
  4. hardware
Qus. 7 : Which is a not category of language?

  1. Low level language
  2. Medium level language
  3. High level language
  4. None
Qus. 8 : Which of the following is a Linux command?

  1. Chmod
  2. curl
  3. df
  4. all
Qus. 9 : Operating system based on?

  1. Kernel
  2. Access
  3. Process
  4. None
Qus. 10 : Which is handles all the functions of the computer

  1. Input
  2. Output
  3. Operating system
  4. Hardware
Qus. 11 : Which of the following is the mobile operating system?

  1. Window phone
  2. Android
  3. BADA
  4. All of the above
Qus. 12 : Operating System is an example of

  1. Application Software
  2. System software
  3. Utility program
  4. None of these
Qus. 13 : what is the process ID (PID) of init process?

  1. 2
  2. 4
  3. 1
  4. 6
Qus. 14 : Android version 7 is called

  1. Lollipop
  2. Marshmallow
  3. Nougat
  4. Oreo
Qus. 15 : If a computer does not have the ___ it can not boot.

  1. Compiler
  2. Loader
  3. Assembler
  4. Operating system
Qus. 16 : An extension of multiprogramming OS is

  1. Time sharing
  2. Multitasking
  3. Only Time sharing
  4. Both Time sharing and Multitasking
Qus. 17 : Which is not an Operating System service given to users ?

  1. I/O
  2. Process management
  3. Compilation
  4. File management
Qus. 18 : Open Remote option opens file from

  1. Desktop
  2. Hard disk
  3. Pendrive
  4. Services
Qus. 19 : Which of the following software is required to run the hardware?

  1. Task Manager
  2. Task Bar
  3. Program Manager
  4. Device Driver
Qus. 20 : Which of the following is the shortcut key for screenshot in windows 10?

  1. screen
  2. screenshot
  3. prt scr
  4. print
Qus. 21 : What is shortcut key of reboot?

  1. Ctrl+Alt+Del
  2. Ctrl+Shift+Del
  3. Ctrl+Alt+4
  4. Ctrl+Alt+F10
Qus. 22 : Operating System of a computer serves as a software interface between the user and_

  1. Memory
  2. Hardware
  3. Peripheral
  4. Screen
Qus. 23 : <p>Arrange the following operating system components from lowest to highest in terms of abstraction (from hardware to user-level):</p><p>1️⃣ Kernel</p><p>2️⃣ User Interface (Shell)</p><p>3️⃣ Application Programs</p><p>4️⃣ Hardware</p>

  1. 1 → 4 → 3 → 2
  2. 4 → 3 → 2 → 1
  3. 3 → 2 → 4 → 1
  4. 4 → 1 → 2 → 3

Programs

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