Policy vs mechanism in operating system

Introduction This is a commonly asked question in operating systems design. In this post, I am going to provide few examples to clarify the difference between policy and mechanism in OS. Let us first explain what policy and mechanism stand …

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Page table vs inverted page table

Introduction The purpose of this short post is to explain operating system’s page table vs inverted page table, mention their advantages and disadvantages in an easy to follow manner. Many students and beginners do not get the point behind these …

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Python mutex example

Introduction I highly recommend that you check out the following article to get a quick idea about different terms used in operating systems with regard to concurrency, multitasking and threading. Back to our topic, In this short post, I am …

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Difference between paging and segmentation

Introduction Finding differences between two terms may imply that we are aware of what each individual term stands for yet the purpose of comparison is just seeking a better way of understanding. I think that is true to some extent …

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Difference between computer architecture and computer organization

This is a commonly asked question that sadly confuses many computer science students. ┬áConfusion comes from the fact that the literal meaning of the two terms is very close. Also, the historical context of the two terms does not help …

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Static data member in C++

Introduction The distinction between regular and static variables in C++ is a such a confusing topic for many beginners including students and programers. In this short article, I am going to provide an brief explanation and hopefully remove the ambiguity. …

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Python Power Function

Syntax The power function in Python can be easily computed by importing the math module as follows: import math # This will print 8 which is 2 to the power 3 print pow(2, 3) You can alternatively use the ** …

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