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Module 1: Introduction to Operating Systems

20252m

Which type of Operating System allows multiple users to access the system simultaneously?

(i) Single-user OS
(ii) Batch OS
(iii) Multi-user OS
(iv) Embedded OS

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Answer: (iii) Multi-user OS

  • Multi-user OS (e.g., UNIX, Linux, Windows Server) allows multiple users to access the system simultaneously via terminals/remote sessions, with isolation and access control.
  • Single-user OS allows only one user at a time.
  • Batch OS executes jobs without user interaction.
  • Embedded OS is specialized for devices, not multi-user access.

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