1.1 Operating Systems Overview

Question 1

What is an operating system (OS)?

Answer 1

Essential software that links hardware to applications, manages files, interacts with CPU/memory, and handles input/output devices.

The OS is crucial for the functioning of computer systems.

Question 2

What are the main functions of an OS?

Answer 2

• File management
• CPU and memory interaction
• Input/output device management (keyboards, monitors, etc.)

These functions are essential for the operation of software applications.

Question 3

What are some common desktop operating systems?

Answer 3

• Microsoft Windows
• Linux
• Apple macOS
• Google Chrome OS

Each OS has unique features and user bases.

Question 4

What are the key features of Microsoft Windows?

Answer 4

• Large industry support
• Wide software availability
• Common in organizations
• Common target for security threats

Windows is the most widely used desktop OS.

Question 5

What is Linux and what are its pros and cons?

Answer 5

• Free, open-source OS
• Many distributions (‘distros’)
• Flexible but may have hardware driver challenges compared to Windows

Linux is popular among developers and tech enthusiasts.

Question 6

What are the main features of Apple macOS?

Answer 6

• Easy to use
• Exclusive to Apple hardware
• High compatibility
• Higher cost

macOS is known for its user-friendly interface.

Question 7

What is Google Chrome OS designed for?

Answer 7

Lightweight, browser-based OS focused on speed and simplicity; relies heavily on network connectivity and cloud applications.

Chrome OS is primarily used on Chromebooks.

Question 8

How do mobile operating systems differ between iOS/iPad OS and Android?

Answer 8

• iOS/iPad OS: Closed-source, exclusive to Apple
• Android: Open-source, runs on various hardware platforms

These differences affect app availability and user experience.

Question 9

Why is it important to keep operating systems updated?

Answer 9

To maintain security and efficiency.

Updates often include security patches and performance improvements.

Question 10

Can applications run across different operating systems?

Answer 10

Generally, no. Applications written for one OS usually cannot run on another, though data files may be shared.

Cross-platform applications exist but are exceptions.