User Management

Computer Science: Edexcel IGCSE, topic 4.4.6

User Management

Operating systems differ in the number of simultaneous users that they support.

Single-user operating system

Single-user operating system

  • A single-user operating system is an OS which supports one user at a time.
  • A single-user OS may or may not support multiple user accounts, although only one account may access the system at a time.
Multi-user operating system

Multi-user operating system

  • A multi-user operating system allows several users to be connected at the same time.
User manager

User manager

  • A user manager keeps track of which users can access the system and who is currently logged in.
  • The user manager also handles authentication, or logging in.
  • The user manager is also responsible for making decisions based on access rights:
  • For example: Can user X access document Y?

Test yourself on User Management

  • How many user accounts can a single-user operating system support at one time?

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