Explanation: PC-DOS is not a multi-user operating system because PC-DOS is single user operating system. PC-DOS (Personal Computer – Disk Operating System) was the first widely-installed operating system used in personal computers.

Is MS DOS a multi-user operating system?

Multiuser DOS is a real-time multi-user multi-tasking operating system for IBM PC-compatible microcomputers. An evolution of the older Concurrent CP/M-86, Concurrent DOS and Concurrent DOS 386 operating systems, it was originally developed by Digital Research and acquired and further developed by Novell in 1991.

What is multi-user operation system?

A multi-user operating system (OS) is one that can be used by more than one person at a time while running on a single machine. Different users access the machine running the OS through networked terminals. The OS can handle requests from users by taking turns among connected users.