ng cannot be handled at kernel mode and they need to be transferred at user mode? Describe some of the challenges of designing operating systems for mobile devices compared with designing operating systems for traditional PCs?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Course: Operating System 

Question No. 2

For the following short questions, provide a 3-4 line answer. The answer should be based on your analysis and critical thinking.

  1. Why everything cannot be handled at kernel mode and they need to be transferred at user mode?
  1. Describe some of the challenges of designing operating systems for mobile devices compared with designing operating systems for traditional PCs?
  1. In One-to-One multithreading model, number of threads per process sometimes are restricted due to overhead, why?

Note: Solve ASAP 

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