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Introduction to Operating Systems

Main Functions of a Computer

There are four main functions of a computer that make user interaction possible:

  • Input
  • Processing
  • Memory
  • Output
- Input is data we give to our computers through interactions - Processing is comprised of the translation of input and the instructions given for output - Memory is used to store either temporary or permanent information - Output is the information that gets returned by the computer

The Operating System

The operating system (OS) is system software that manages the basic functionalities of a computer and is responsible for tasks such as process management, memory management, file system management, IO management, networking, security, and providing a user interface.