Operating Systems Overview

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Questions and Answers

What role does the Operating System play in a computer system?

  • It acts as an intermediary between the user and computer hardware. (correct)
  • It eliminates the need for any additional software to operate.
  • It directly runs all user applications without any intermediary.
  • It is solely responsible for managing hardware without user interaction.

Which of the following is NOT a function of the Operating System?

  • Communicating with peripheral devices.
  • Loading application programs into memory.
  • Accepting and carrying out user commands.
  • Directly executing the instructions of the application program. (correct)

Which of the following components is primarily responsible for executing user applications?

  • I/O Devices
  • Application Program (correct)
  • Memory
  • Operating System

What is the relationship between hardware and software in a computer system?

<p>Hardware serves as the foundation that software builds upon. (C)</p> Signup and view all the answers

How does the Operating System ensure fair resource allocation among users?

<p>By distributing resources based on time-sharing methods. (A)</p> Signup and view all the answers

Flashcards

Operating System

An intermediary software program that manages computer hardware and enables user interaction.

Hardware

Basic components of a computer, including the processor, memory, and input/output devices.

Software

A set of instructions that tell a computer how to perform specific tasks.

Application Programs

Programs designed to solve specific user problems, such as games, business applications, or compilers.

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Operating System (Role)

The core part of a computer system that manages and allocates resources to various application programs and users.

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Study Notes

Operating System Definition

  • An operating system (OS) is a program that acts as an intermediary between the computer user and the computer hardware.
  • It's a set of software routines situated between application programs and hardware.

Operating System Functions

  • Performs key support functions, such as communicating with peripheral devices and accepting/carrying out user commands.
    • Loads programs
    • Copies files
    • Creates directories

Components of a Computer System

  • Hardware: Provides the basic computing resources (processor, memory, I/O devices).
  • Software: A set of instructions for operating computers and performing specific tasks.
    • Application Programs: Define how hardware resources are used to solve user problems (compilers, database systems, games, business programs).
  • Operating System: Controls and coordinates the use of hardware among application programs for various users.
    • Provides an environment for other programs to perform useful work.
    • Allocates resources requested by specific programs/users to operate the computer system fairly and efficiently.

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