What is the difference between mutex and critical section? Please explain from  Linux, Windows perspectives? 
I am programming in C#, would these two terms make a difference. Please post as much as  you can, with examples and such....
Thanks
I saw this video where someone says that electromagnetic wave is a chain reaction of electric and magnetic fields creating each other so the chain of wave moves forward.
I wonder where the photon is in this explanation. What is the relation between electromagnetic wave and photon?
Also said that photon is the basic particle of electromagnetic wave, said is my favorite physicist but's explanation confuse me.
I would like to to to clear my question.
Your favorite YouTuber,
Matt
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Dear Matt,

First, let me clarify a few things about the relationship between electromagnetic waves and photons. An electromagnetic wave is a self-propagating disturbance in the electric and magnetic fields that propagates through a vacuum or through a medium such as air or a dielect
,
Brian
There are indeed some differences between mutex and critical sections from the perspective of both Linux and Windows, but to provide a comprehensive answer, let's first define both concepts:
1. Mutex (Short for Mutual Exclusion):
   A mutual exclusion object, also known as a mutex, is a synchronization object that allows multiple threads toarily access a shared resource, but only one thread at a time. When a thread acquires a mutex, itally locks it, preventing other threads from acquiring it until the first thread releases the lock.
2. Critical