Question

Unix is which kind of operating system?

• A. Multiuser
• B. Multiprocessing
• C. Multitasking
• D. All of these

Hint:

Unix is a powerful operating system that is designed to handle multiple users, tasks, and processors simultaneously, making it suitable for both large servers and personal workstations.

Answer 1

The Correct Option is D

The correct answer is All of these.
Unix is a versatile, multiuser, multitasking, and multiprocessing operating system. Let’s break it down: 1. Multiuser : Unix is a multiuser operating system, meaning it allows multiple users to log in and use the system simultaneously without interfering with each other’s activities. Each user can have their own environment and files, and the system can manage multiple users without conflict. 2. Multiprocessing : Unix can support multiprocessing, which means it can handle multiple processors (CPUs) simultaneously. This allows Unix systems to efficiently perform parallel processing, improving performance for tasks that can be divided into smaller sub-tasks that run concurrently. 3. Multitasking : Unix is also a multitasking operating system, meaning it can run multiple tasks or processes at the same time. Each task runs independently, allowing the system to switch between them to give the appearance that all tasks are happening simultaneously.
Explanation of Other Options:
(A) Multiuser:
Unix is indeed a multiuser operating system, but this is only one aspect of its capabilities. It’s not the only feature.
(B) Multiprocessing:
Unix supports multiprocessing, but this doesn’t cover all the features that make Unix a complete operating system.
(C) Multitasking:
While Unix supports multitasking, this alone does not fully describe Unix. It has all the capabilities mentioned in(D).

Summary:
- Unix is a multiuser , multitasking , and multiprocessing operating system. - All the options mentioned (\texttt{Multiuser},Multiprocessing, andMultitasking) apply to Unix, so the correct answer isD.