a library of routines for managing a database. The database is a simple data file containing records, each is a pair of a key and a value. Every key and value is serial bytes with variable length.
a full-stack, open-source web framework in Ruby for writing real-world applications with joy and less code than most frameworks spend doing XML sit-ups
is the most 'standard' binary from the common point-of-view in the Windows world. But we cannot use some parts of characteristic functions which ruby on UNIX has.
a free source code editor which supports several programming languages running under the MS Windows environment. based on Scintilla edit component (a very powerful editor component)
a free user interface builder for GTK+ and GNOME interfaces designed are saved as XML, and by using the libglade library these can be loaded by applications dynamically as needed. (Glade can also generate C code)
a pure Java implementation of the Ruby interpreter is tightly integrated with Java to allow both to script any Java class and to embed the interpreter into any Java application.