Unit 3 - Operating Systems

These flashcards cover key concepts, definitions, and comparisons related to operating systems, as discussed in the lecture notes.

Why do operating systems exist?

To ensure the interchange between the processor, internal memory, and peripherals to run programs.

What is the role of the Operating System?

It creates the link between physical resources, users, and applications, managing resources and providing a user-friendly interface.

What is Process Management in Operating Systems?

The distribution of the processor among different programs using scheduling algorithms.

What is an example of a scheduling algorithm?

First-Come, First-Served or Priority Scheduling.

Define Random Access Memory Management.

The management of memory space assigned for applications, including the use of virtual memory when physical memory is insufficient.

What does Virtual Memory do?

Allows running applications requiring more memory than available, although it is slower than physical RAM.

What is Input/Output Management in Operating Systems?

It supervises the access of programs to material resources through drivers.

How does the Operating System manage Execution of applications?

By assigning the necessary resources to ensure applications run without issues.

What is the main purpose of Authorisation Management in an Operating System?

To ensure that resources are only used by authorized programs and users.

How does File Management work in Operating Systems?

It manages the reading and writing in the file system, including access authorizations for files.

What are the components of an Operating System?

Kernel, command line, and file system.

What distinguishes Linux from other Operating Systems?

It is open-source, allowing users to modify and redistribute it freely.

What features does Windows Operating System offer?

User-friendly interface, software compatibility, frequent updates, and customization options.

What is a key advantage of macOS?

Seamless integration with other Apple devices.

Describe Android as a Mobile Operating System.

It's an open-source platform with high customization and a large app ecosystem.

What are the key components of a Mobile Operating System?

User Interface, Kernel, Application Framework, and Security features.

What is HarmonyOS primarily used for?

As an alternative to Android for Huawei devices, supporting various device types.

Describe the Smart TV operating systems market.

It is diversified with many competitors and choices, unlike mobile or PC operating systems.