Hi programmers

i would like to ask some simple questions im just new to c programming actually i just started yesterday by searching in web and ended up in cprogramming.com which led me here.

Question:
1. are all the compilers the same?
-i have downloaded a compiler Dev-C++ and i dont know what to do with that. i all know that i need a compiler i searched google web and typed in compiler and i choose Dev-C++,


2. Is it okay to stick to Dev-C++?
-should i use different compiler? or Dev-C++ is different from others?


3. Is Turbo C also a compiler?
-what is Turbo C? should i use it rather than Dev-C++?

4. should i try to learn C first or C++
- which is harder


i dont know T_T i dont even know how to program and use this comppilers but im willing to learn i just have to learn the basics and some rules


please help me anyone?

thank you so much!