How many programming languages do you think you know? Think a lot? Let's Check that out... 1. C: The Mother of all modern programming languages C Developed by: Dennis Ritchie Developed in: 1972 HelloWorld.c #include<stdio.h> int main(void){ printf("Hello World!"); return 0; } 2. C++: The Mother's still young and charming daughter C++ (C Plus Plus) Developed by: Bjarne Stroustrup Developed in: 1985 HelloWorld.cpp #include<iostream> using namespace std; int main(){ cout << "Hello World!"; return 0; } 3. C#: The Daughter's quite similar friend C# (C Sharp) Developed by: Anders Hejlsberg and Mads Torgersen Developed in: 2000 HelloWorld.cs using System; namespace HelloWorldApp{ class HelloWorld{ static void Main(strings[] args){ Console.WriteLine("Hello World!"); } } } 4. COBOL: It's Business Class Developed by: US Department of Defense Developed in: 1959 HelloWorld.cbl IDENTIFICATI...