Discuss the various hardware platforms that have operating system and what they are used for. Also discuss the desktop pc operating system and how it has evolved.

What is the KERNEL? Describe the difference between kernel mode and user mode.

Provide a complete overview of the features and utilities that most kernels posses.

What is a process? What are threads? Describe how process and threads are used in an operating system.

Why is the use of process and threads significantly important to the functionality of modern operating systems.

Describe how operating system manages memory. What is virtual, logical and physical memory?

What are frames and pages? How is the memory on a computer organised and accessed? Describe main memory component and features that an operating system provide.

Describe the concept of CPU scheduling and how it is performed. What components constitutes CPU scheduling?

How can CPU scheduling be optimized? What are some common CPU scheduling algorithms?

Describe Operating System protection and security. (How to protect, features existing as protection, are they functional or not?)

Describe what is meant by (Distributed Operating Systems) Describe the platforms, features and the unique characteristics of DOS.