git undo add

How to remove a file (git undo add) from staging ready for the next commit? Once software development is done and now you are ready yo make a commit.  For that, list the changed files,  maybe there are new files too.  Next is to add source files for a commit. But just before commit, you noticed that there are one or more files that are …

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what is collision domain

What is the Collision domain in a computer network? While setting or using a computer network you never worry about the collision frequency.  But it will get important when the number of hosts keeps increasing and the network becomes slower and slower.  In this tutorial, we will discuss the collision domain and how various network topology and devices affect the amount of collusion in the …

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proxy server in networking

What is a Proxy server in networking? | How it works? The word proxy means pretend to something else than actual.  In some cases, the actual identity should be hidden for security and other reasons.  A proxy server in networking is a solution for hiding client identity to the server.  On a daily basis you might be browsing sites, but never know how your information …

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file input output in python

File input-output (I/O) and file handling in python. What is File? It is a persistent memory on disk.  You may also manually create, delete, or edit a file. It can be of two types one is binary another is text. File input and output in python is to get input in a program from a file and write output to the same of different file. …

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input output in python

Input/Output in python with print() and input() functions. A program or software without user interaction is nothing.  In our last python tutorial, we have learned how to write a Hello, World program.  The next task is to learn how we can make a python software interactive.  For that, we will learn about the input function, to get data from the user. And another routing print, …

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hello world python

The Hello World Program in Python. Hello, World is always the first program to show, how we can write program code and execute.  Similar we do in python, so start our journey to learn python. Code for Hello World  #This is the first program a programmer would develop #to understand the program structure. print(“Hello World”); Output: D:\Python Examples>py HelloWorld.py Hello World D:\Python Examples> What is …

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