Hi, i'm very new to programming and i was following along with the tutorial on this site, and i was trying to compile and run this code.

Code:
#include <iostream>

using namespace std;

int main()
{
  cout<<"HEY, you, I'm alive! Oh, and Hello World!\n";
  cin.get();
}
the <iostream>, as well as the parts in "quotes" appears red. what does it appearing in red mean?

i'm using Visual Studio atm. And i've been looking around but i can't find any info about it.