what is operating system few exmaples

Question

I m preparing for my exams

Answer 1

A Operating System (OS) is the main software that helps a computer or phone work by managing its hardware and allowing you to run apps.

It is an abstraction layer between the user/programs and the hardware.

Different Layers:

1. Hardware → physical parts (CPU, memory, keyboard, screen).
2. Operating System → manages hardware, gives a simple interface to apps.
3. Applications → programs (games, browser, Word, etc.) that run on top of the OS.
4. User → you, using the apps through a screen, keyboard, mouse, or touch.

Flow: Hardware → OS → Apps → User

Examples of Operating Systems

1. For computers:
2. Windows (by Microsoft)
3. macOS (by Apple)
4. Linux (open-source, used on servers and sometimes desktops)
5. For phones/tablets:
6. Android (used by Samsung, Google Pixel, etc.)
7. iOS (used by iPhones and iPads)
8. Other devices:
9. Smart TVs and Gaming consoles have a OS too.