Operating Systems

Operating Systems

"software that manages a computer’s peripheral hardware and provides a user interface"

Consists of:

  • user interface
  • device drivers
  • system utilities
  • the kernel

User Interface - user communicating with computer, e.g. Graphical User Interfaces and Command Lines

Device Driver - program that controls particular type of device attached to computer

System Utilities - set of small programs that provide an addition to the capabilites provided by the OS

The Kernel - centre of the OS that provides basic services for all other parts of OS

An operating system can:

  • provide a user interface
  • manage hardware
  • manage how programs use main

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