Perl is available for several platforms, and it's simple to
download and install (Mac OS X comes with Perl installed).
You may download Perl for Windows, 32 and 64 bits, from Strawberry Perl.
The server at learn.perl.org has explanations and help on installing Perl on a Windows OS.
If the binary for the platform you have is not available, there's a larger selection of Perl binary packages at CPAN.
The Perl distribution comes with a set of library files called modules.
A module is a text file with a .pm suffix that contains perl code that is designed to be reusable.|
You may search for Modules to add to your local Perl from CPAN, Comprehensive Perl Archive Network.
The CPAN network offers mirrors worldwide, including a local mirror at the Weizmann Insitute.
Dr Jaime Prilusky, email@example.com.