which os is best for programming?
if linux tell which linux
u can use any os depending which suits you, ideally for release various platforms Linux is best. previously red hat now days fedora or Ubuntu 9.x u can get version of GCC or clang for that.
Ubuntu.com does the job and so does a simple Google search for the keyword.
If you get Ubuntu, please get newer Ubuntu than 9.x. Latest version is 16.04...
send me the link pls and also mention how much memory it is
Doesn't matter is you have Windows / Linux / Mac OS / ... .