Basic difference about C# from other languages.

Please visit these url:

https://www.quora.com/What-is-the-difference-between-C-C++-and-C

http://www.codeproject.com/Articles/22854/Main-Differences-between-C-and-Java

Which other programming language you know?

For absolute beginner there is an online video tutorial, which is absolutely free!

https://mva.microsoft.com/en-US/training-courses/c-fundamentals-for-absolute-beginners-16169

Apart from this there are literally hundreds of online tutorials on YouTube.

Personally, I have been doing development since 1986 and first learned dBase III+ on my own. After than I have developed code using Clipper, COBOL, C, Perl, VB 6.0, VB.NET and C# and also for Arduino, which is again C/C++ based. Not to mention VBScript, VBA and JavaScript as they are scripting languages. And now plan to learn Python for Raspberry Pi development. Every language has it's own strengths and weaknesses and style. Once you understand that, learning new language is easy.

http://www.c-sharpcorner.com/article/similarities-and-difference-with-C-Sharp-and-other-languages/

Detailed comparison.

https://msdn.microsoft.com/en-us/library/ms836794.aspx