Operating systems

Operating systems

1. Hide the complexities of the computer hardware from the user and manages the hardware resources e.g. memory, processor

2. Virtual machine

   • The apparent machine that the operating system presents to the user

3. Application programming interface

   • A layer of software that allows application programs to call on the service of the operating system

4. Classificatiuon

   • Interactive operating system
     • An operating system in which the user and the computer are in direct two way communication
   • Real time operating system
     • Inputs are processed in a timely manner so that the output can affect the source of the inputs
   • Network operating system
   • Embedded computer system