Operating Systems

Operating Systems

1. Core Concepts Definition of Operating Systems "They help computers run smoothly by allowing multiple tasks at once and making it easy for users to interact with the computer." Image: A computer running different apps (multitasking illustration). Main Job of an OS

2. Main Job of an OS "Acts like a middleman between the user and the computer hardware, managing resources and providing a user-friendly experience." Image: A diagram showing users, OS, and hardware interaction.

3. Early Computers "In the past, computers could only run one program at a time, unlike today’s computers." Image: A vintage computer.

4. Multitasking "Modern operating systems let you run several apps at the same time." Image: Multiple apps open on a computer screen.

5. Security Role of OS "Helps keep files safe and controls who can access what on the computer." Image: A padlock on a digital screen.

6. Mobile Operating System Example: Android ImageAndroid logo or a sm:artphone interface.

7. Linux "Popular in computer security because it is flexible and powerful." Image: Linux mascot (Tux).

8. raphical User Interface (GUI) "Icons and pictures to click on." Image: A GUI interface with a taskbar and icons.

9. Command-Line Interface (CLI) "A text-based way to control a computer." Image: A terminal with code.

10. Desktop and Start Menu Desktop: "Main screen area with icons and shortcuts." Start Menu: "Helps find and open programs quickly." Image: Screenshot of a Windows desktop and Start Menu.

11. Creating a Sprite "Use commands like createSprite() for objects in a game." Image: A game character sprite.

12. Pac-Man "The game released in 1980 that became a cultural icon." Image: Pac-Man arcade game.

13. Pong "One of the first digital computer games." Image: Screenshot of Pong.