Operating System: Functions and Virtualization

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30 Questions

What is the main function of an operating system?

Acting as an intermediary between the user and the computer hardware

Which statement best describes Time Multiplexing?

It allows each process to utilize a resource one after the other

What resources can be shared using Time Multiplexing?

CPU Processing Power and GPU

What is the main function of Space Multiplexing?

Simultaneously allocating free spaces to all processes it can accommodate

Which resources are shared using Space Multiplexing?

Memory Space and Hard Disk Space

What does the operating system act as when it presents the user with an equivalent machine or virtual machine?

Virtual machine manager

What is the primary function of the User Command Interface in an operating system?

Provides a way to access data in the computer

Which component of the operating system deals with the proper scheduling of tasks in utilizing the processor or CPU?

Processor Manager

What is the main focus of the Memory Manager in an operating system?

Allocates spaces in the memory

Which component of the OS is responsible for control over peripheral devices?

Device Manager

What does a Single-User OS refer to?

Only one user can access the computer system at a time

What distinguishes a Real-Time OS from other types of operating systems?

Makes use of time as a key parameter to its operation

Which generation of operating systems introduced the concept of Multiprogramming?

Third Generation

What major change occurred in the Fourth Generation of operating systems?

Development of graphical user interface (GUI)

An operating system acts as an intermediary between the user and the computer hardware

True

Time Multiplexing ensures that each process is given time to utilize a resource one after the other

True

Space Multiplexing upholds the one-at-a-time policy for resource allocation

False

The resources that can be shared using Time Multiplexing include CPU processing power, GPU, keyboard, and printers

True

RAM accommodates all the processes it can take at the same time in Space Multiplexing

True

The operating system presents the user with an equivalent machine or virtual machine

True

An OS Shell is also known as the User Command Interface.

False

The Memory Manager in an operating system focuses on the proper allocation of CPU resources.

False

A Single-User OS is capable of handling demands of different users at a time.

False

Real-Time OS makes use of time as a key parameter to its operation.

True

The First Generation of operating systems made use of integrated circuits and multiprogramming.

False

The Fourth Generation of operating systems is known for the development of graphical user interface (GUI).

True

Space Multiplexing allows multiple programs to run simultaneously.

False

The Device Manager in the OS is responsible for handling sharing issues and exchange of data between devices.

False

Embedded OS is capable of handling demands of different users at a time.

False

The User Interface in an operating system provides a way to access data in the computer.

True

Study Notes

Operating System Functions

  • The main function of an operating system is to act as an intermediary between the user and the computer hardware.
  • The operating system presents the user with an equivalent machine or virtual machine.

Multiplexing

  • Time Multiplexing ensures that each process is given time to utilize a resource one after the other.
  • Resources that can be shared using Time Multiplexing include CPU processing power, GPU, keyboard, and printers.
  • Space Multiplexing allows multiple programs to run simultaneously, allocating resources to each process at the same time.
  • In Space Multiplexing, RAM accommodates all the processes it can take at the same time.

Operating System Components

  • The User Command Interface (also known as OS Shell) provides a way to access data in the computer.
  • The component of the operating system that deals with the proper scheduling of tasks in utilizing the processor or CPU is the Scheduler.
  • The Memory Manager focuses on the proper allocation of memory resources.
  • The Device Manager is responsible for handling sharing issues and exchange of data between devices.

Operating System Types

  • A Single-User OS is capable of handling demands of a single user at a time.
  • A Real-Time OS makes use of time as a key parameter to its operation, distinguishing it from other types of operating systems.
  • An Embedded OS is designed to handle demands of a specific application or device.

Operating System Generations

  • The First Generation of operating systems introduced the concept of Multiprogramming.
  • The Fourth Generation of operating systems is known for the development of graphical user interface (GUI).

Test your knowledge of the functions and virtualization aspects of an operating system with this quiz. Explore the role of an operating system as an intermediary between users and computer hardware, and its function as a resource manager.

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