46. CAMBRIDGE IGCSE (0478-0984) 4.1 The purpose and functions of operating systems

We discussed the need for operating systems and their function and purpose.

The purpose of an operating system is to provide an interface between the user and hardware, allowing users to interact with application software. It also provides a platform for application software and utility programs like encryption, compression, and defragmentation.

The user interface, known as the Graphical User Interface (GUI), encompasses windows, icons, menus, and pointers. It provides a visual and interactive way for human-computer interaction that is intuitive to use.

The command line interface is optimized for mouse and touch gesture input, making it ideal for beginners. It is text-heavy but less resource-intensive than a graphical user interface (GUI). Best suited for advanced users who want to accomplish tasks quickly and automate processes with scripts.

Menu-driven interfaces are commonly found at cash points and chip-and-pin devices. Users interact with successive menus, choosing options via buttons on a keypad.

The natural language interface allows users to speak in their natural language to interact with computer systems, such as Siri, Cortana, Hey Google, and Alexa. Although historically unreliable, the technology is rapidly advancing in accuracy and reliability.

In this video, we'll explore the impact of climate change on marine life and ecosystems. We'll discuss the challenges faced by marine species and how human activities contribute to these issues.

Take a moment to pause and reflect on what you have learned from the video.