Skip to main content

What is Network Operating System ? Functions of NOS, Advantages & Disadvantages of NOS.

 Network Operating System

An operating system is an intermediary between users and computer hardware. It provides users an environment in which a user can execute programs conveniently and efficiently.
Network operating system  (NOS) runs on a server and provides server the capability to manage data, users, groups, security, applications, and other networking functions.
The primary purpose of the network operating system is to allow shared  file and printer access among multiple computers in a network. Examples of a networking operating systems are Microsoft Windows Server 2008, UNIX, Linux, NetWare etc. 

network img



Functions of NOS

  1. Monitoring the system and security, so as to provide security against  viruses, hackers, and data corruption.
  2. Enabling and managing  access to files on remote systems, and granting access to users.
  3. Granting access to remote applications and resources, such as the Internet.
  4. Providing access to remote devices such as printers, etc.
  5. Providing basic network administration utilities (such as SNMP), enabling an administrator to perform tasks involving managing network resources and users.

Advantages of Network Operating System

  1. Centralized servers are highly stable.
  2. Security is server managed.
  3. Remote access to servers is possible from different locations and types of systems.
  4. Upgrades to new technogies and hardware can be easily integrated into the system.

Disadvantages of Network Operating System

  1. Regular maintenance and updates are required.
  2. HIgh cost of buying and running server.
  3. Dependency on a central location for most operations.
Labels:

Comments

Post a Comment

Please do not enter any spam link in the comment box.

Popular posts from this blog

HPSSC - Junior Office Assistant Most important computer questions

 HPSSC- important computer questions for various examination Most important questions for various JOA (Junior Office Assistant) exams     Q-1) Which of the following is not a type of RAM ?  i) DRAM   ii) SRAM iii)SSD iv)SDRAM Ans. SSD Q-2)  Which of the following is the smallest and largest unit of memory? i) Nibble, PB ii) Byte,TB iii)KB,GB iv)byte,MB Ans. Nibble,PB Q-3) Super computer is a type of which of the following: i) Analog Computer ii) Digital Computer iii) Hybrid Computer iv) None of these Ans. Digital Computer Q-4) A microprocessor is a ................... where a large number of circuit elements  are integrated. i) electronic board ii) chip iii) mother board iv) none of these   Ans. Chip   Q-5) The speed of a CPU is determined by the number of .................. executed by it per second. i) megahertz ii) rules iii) instructions iv) processes   Ans. instructions Q-6) The speed of CPU is measured in i) MB ii) T...
Post a Comment
Read more

hpssc joa exam preparation (Joa It mcq pdf)

  HPSSC JOA - IT (939) Exam Preparation mcq questions for practice.            Q-1) Out of following, whom do you think is the most probable user of Light Pen? i) Computer Programmer ii) Graphic Designer iii) Journalist iv) computer Scientist       Ans. Graphic Designer       Q-2) Name the type of mouse which uses laser technology to detect the motion of the ball. i) Optical Mouse ii) Mechanical Mouse iii) Opto Mechanical Mouse iv) All of these          Ans. Optical Mouse       Q-3) Which is a vector based graphical printing device? i) Printers ii) Plotters iii) Scanners iv) Light Pen       Ans. Plotters       Q-4) Which type of plotter is used to produce continuous output such as plotting earthquake activity? i) Drum Plotter ii) Flatbed plotter iii) Disk platters iv) None of these       Ans. Drum Plotters     Q-5) The diameter ...
Post a Comment
Read more

What is software and examples?

 What is software? A computer software is a a collection of programs and procedures that instructs a computer how to perform different types of tasks.  In a simple language," a software is that which we cannot touch and feel" For example: In todays world we use alot of digital devices for example smart watch, Mobile phones, Digital cameras, Smart Tv etc. all of these are just like an empty box if there is no software iniside this. Software is that which we seen on our  computer screen, mobile screen etc. From calulator to every single app which you use on your devices all of these are softwares. A software enhances the capability of the hardware and directs the computer to perform  operations like Input, Processing and Output.  A software can be classified into two types: 1. Application Software 2. System Software Also read about input and output devices System-Software: It is a collection of one or more program, which are designed to control the overall operati...
Post a Comment
Read more