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About Operating System : An operating system i.e. OS is a system software, which is bridge of Device hardware and software. It is also manage device hardware and device applications and provide access to the users. Actually OS is a program which is developed by device (like computer, laptop, mobile etc) manufacturer. It is designed for the specific purpose and for better experience to the users. The main function of OS is to manage user input and output command, mass storage, time sharing, speed,, etc.
               There are many Operating system available in the market like: Microsoft Window, MacOS, Linux, Android, iOS. There are many types of Operating System, which is depended upon user and tasking:
Single tasking and multi tasking: In the single tasking system only one program run at a time but in the multi tasking more than one program run at a time.
Single User and multi user: In the Single user system only one user access at a time but in the multi user system more than one user access system at a time.

151. All of the following are task performed by the operating system except
A Managing hardware on the computer
B Controlling the access that application program has to the CPU
C Performing housekeeping task like file compression and disk defragmentation
D Provides an interface for user to interact with computer
ANS
152. Which of the following is not an operating system?
A CP/M
B Unix
C Pascal
D MS DOS
ANS


153. Operating system is like a
A Government
B Police
C Parliament
D All of above
ANS
154. Underlined character on the menu or dialog box known as
A Hot spot
B Hot key
C Pane
D Underline word
ANS
155. Which key deletes text before, or to the left, of the insertion point?
A PageUp
B Delete
C PageDown
D BackSpace
ANS
156. The chunks of a memory are known as
A Sector
B Offset
C Page
D Frame
ANS

157. Start/restart the computer is called
A Exit
B Run
C Option
D Boot
ANS

Download Operating System Objective Question and Answer  | Computer OS MCQ

158. Which file is transferred when computer is start up?
A Document
B Program files
C Operating system
D System files
ANS
159. Which of the following is an example of utility?
A Antivirus
B Word
C Operating system
D Data recovery
ANS
160. Which is built directly on the hardware?
A Computer Environment
B Application Software
C Operating System
D Database System
ANS
161. ....system is built directly on the hardware
A Environment
B System
C Operating
D None
ANS
162. The purpose of run command in start menu is to
A Launch internet browser
B Open internet explorer
C Open windows explorer
D Start programs
ANS
163. You can select My Computer icon and press Alt + Enter to
A Delete it from desktop permanently
B Open it in Explorer mode
C Open System Properties dialog box
D Pin it on Start menu
ANS

Download Operating System Objective Question and Answer  | Computer OS MCQ

164. Generally quick launch toolbar is displayed on
A the left side of taskbar
B the right side of taskbar
C on the middle of taskbar
D a bar out of taskbar
ANS
165. Which is not a valid file system?
A FAT 16
B FAT 32
C NTFS
D FXZ
ANS
166. Which file system DOS typically use?
A FAT 16
B FAT 32
C NTFS
D LMFS
ANS
167. Which file system Windows 95 typically use?
A FAT 16
B FAT 32
C NTFS
D LMFS
ANS
168. Which of the following is not a mode in starting Windows?
A Command Prompt
B Safe Mode
C Normal Mode
D Turbo Mode
ANS

Download Operating System Objective Question and Answer  | Computer OS MCQ

169. Which of the following is default mode for Windows to start?
A Command Prompt
B Safe Mode
C Normal Mode
D None of above
ANS


170. The file system "NTFS" stands for
A New Type File System
B Never Terminated File System
C New Technology File System
D Non Terminated File System
ANS
171. What is the full form of NTFS
A New Technology File System
B New Technical File System
C New Technician File System
D None of the above
ANS
172. Which one of the following is not the function of Operating System?
A Resource Management
B File Management
C Networking
D Processor Management
ANS
173. How do you connect internet in your system?
A My computer >> dialup networking
B Control panel >> modem
C Network neighborhood
D None of above
ANS
174. The following applications may appear on system tray except
A System Clock
B Volume Control
C Network Connection
D MS Office Suite
ANS
175. Which of the following is text browser?
A Lynx
B Hot Java
C Netscape
D Internet Explorer
ANS


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