Installing
To get started, you need a compiler, a program that will take your program and convert it into a form that can run on your computer.
Unlike other programming languages, Ada compilers are officially tested, and only those which pass thistest are accepted, for military and commercial work. This means that all Ada compilers behave (almost)the same, so you do not have to learn any dialects. But because the Ada standard allows the compilerwriters to include some additions, you could learn a cool new feature only to find out that your favoritecompiler does not support it....
There are several free compilers. A list is available at
GNAT
GNU Ada Translator
To try the free version of the compiler do as follows:
1. Go to libre.adacore.com and download the file. Select the free version.
2. Follow the instructions to download the current version. For the basic installation you don't need of extra packages. You can install them later too.
3. Double click in the downloaded package to install it.