Created from Youtube video: https://www.youtube.com/watch?v=GjNp0bBrjmUvideoConcepts covered:kernel, multitasking, memory management, device drivers, user interface
Operating systems (OS) are essential software that manage computer hardware, allocate resources, and provide user interfaces. They enable multitasking, memory management, and device control, ensuring efficient execution of programs and user interactions.
The Evolution and Role of Operating Systems
Concepts covered:operating system, kernel, punch cards, multitasking, hardware management
The chapter discusses the evolution and importance of operating systems in computers. It explains how operating systems manage hardware resources, enable multitasking, and provide a user interface, highlighting the transition from early punch card systems to modern OS kernels.
Question 1
The OS manages and allocates computer resources.
Question 2
What is the primary role of an OS?
Question 3
The operating system is responsible for managing and allocating _____.
Question 4
CASE STUDY: A company is setting up new computers and needs to ensure they can run multiple applications efficiently. They are considering different operating systems.
All of the following are OS functions except...
Question 5
CASE STUDY: A software developer is tasked with writing a program that needs to run on multiple types of hardware. They are evaluating how to make their code compatible.
Select two ways an OS helps compatibility.
Understanding RAM and Memory Management in Computers
Concepts covered:RAM, primary memory, virtual memory, memory management, protected memory
RAM, or primary memory, is volatile and gets wiped clean when the computer is turned off, unlike secondary memory on the hard disk. The operating system manages RAM to prevent conflicts between programs and uses virtual memory to extend RAM capacity by temporarily storing data on the hard disk.
Question 6
Virtual memory allows hard disk to act as RAM.
Question 7
Why is protected memory important in an OS?
Question 8
Virtual memory allows the OS to compensate for limited _____.
Question 9
CASE STUDY: Your computer is running multiple applications simultaneously, and you notice a significant slowdown. You suspect that the RAM is being overutilized.
All of the following are correct actions except...
Question 10
CASE STUDY: Your team is developing a new application that requires efficient memory management to run multiple processes smoothly.
Select three correct strategies out of the following...
Evolution and Impact of Operating Systems
Concepts covered:device drivers, command line interface, graphical user interface, kernel, user interaction
Operating systems revolutionized computing by managing hardware and enabling software compatibility through device drivers. They evolved from command line interfaces to graphical user interfaces, significantly enhancing user interaction and efficiency.
Question 11
Device drivers allow OS to control external devices.
Question 12
Which OS component manages program memory allocation?
Question 13
Operating systems manage programmes using the _____.
Question 14
CASE STUDY: A company is developing a new printer model. They need to ensure compatibility with various operating systems.
All of the following ensure compatibility except...
Question 15
CASE STUDY: A tech team is optimizing their operating system's performance.
Select three correct optimizations out of the following...
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