NOS

• Network Operating System


  Software that enables multiple computers and devices on a network to connect and share resources
• What a network operating system does

  • Connects devices
  • Shares resources
  • Manages users and security
  • Provides communication services
• Common examples of network operating systems

  • Windows Server
  • Linux (various distributions with server functionality)
  • macOS Server
  • IBM i
• Client-server architecture


  The implementation of a network operating system
• Server software


  1. Runs on a dedicated computer on the network

  2. Responsible for managing resources, user accounts, security, and providing services to the network clients
• Client software


  1. Runs on individual workstations or devices on the network

  2. Allows users to access resources provided by the server
• Core functionalities of a network operating system

  • Kernel provides the foundation
  • Implements networking protocols
  • Provides security services
  • Manages shared resources
  • Uses directory services
  • Provides remote access
• Importance of network operating systems

  • Kernel development
  • Device driver development
  • System administration
  • Security
  • Networking
  • User interface (UI) development
  • Applications programming interfaces (APIs) development
• Kernel


  The core of the operating system, responsible for managing hardware resources like memory and CPU