Operating System

Discuss the functional requirement in the design of an Operating system ?

Functional requirements are the specific functionalities or behaviors that a system or software application must perform to satisfy user needs, business requirements, and stakeholder expectations. Functional requirements are an important aspect of system design and development and serve as a blueprint or roadmap for the development team, guiding them in the design, implementation, and testing of the system’s functionalities.

In the design of an operating system, functional requirements typically include the following:

  • Process management:
    • The operating system must be able to create, schedule, and manage processes.
  • Memory management:
    • The operating system must be able to manage the system’s memory, including allocating and deallocating memory to processes.
  • File management:
    • The operating system must provide a file system for storing and retrieving files.
  • Device management:
    • The operating system must provide drivers for managing the system’s devices, such as the CPU, memory, and I/O devices.
  • Security:
    • The operating system must provide security features to protect the system from unauthorized access and malicious code.
  • Networking:
  • The operating system must provide networking support to allow the system to communicate with other systems over a network.

In addition to these core functional requirements, operating systems may also include additional features such as a graphical user interface (GUI), a command line interface (CLI), and support for multiple languages.

Here are some examples of functional requirements for an operating system:

  • The operating system must be able to boot up within 30 seconds.
  • The operating system must be able to support up to 100 concurrent users.
  • The operating system must be able to run all of the user’s applications.
  • The operating system must be able to protect the user’s data from unauthorized access.
  • The operating system must be able to connect to the internet.

 

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