Question

______ is an operating system, in which each program can control CPU for as long as it needs it. 
1. Real time operating system 
2. Single user operating system 
3. Multi user operating system
4. Cooperative multitasking operating system

Answer 1

Correct Answer - Option 4 : Cooperative multitasking operating system

The correct answer is a Cooperative multitasking operating system.

• Cooperative multitasking operating system:
  • It is a style of computer multitasking in which the operating system never initiates a context switch from a running process to another process.
  • It is also known as non-preemptive multitasking.
  • Its role reduced down to starting the processes and letting them return control back to it voluntarily.

• Real-time operating system:
  • It is an operating system intended to serve real-time applications that process data as it comes in without buffer delays.
  • A real-time system is a time-bound system that has well-defined, fixed time constraints.
  • Most RTOS uses a pre-emptive scheduling algorithm.
• Single user operating system: 
  • It is a type of system that has been developed and designed to use on a computer.
  • It is the most common system used for home computers.
  • There are two types of this operating system
  1. single-task
  2. multitask
• Multi-user operating system:
  • It is an operating system that allows multiple users to connect and operate a single operating system.
  • The users interact with it through terminals or computers.
  • Examples - Linux, Unix, Windows 2000, etc.