Io 1.0 reviewDownload
Io is small prototype-based programming language.
Io is small prototype-based programming language. The ideas in Io are mostly inspired by Smalltalk (all values are objects), Self (prototype-based), NewtonScript (differential inheritance), Act1 (actors and futures for concurrency), LISP (code is a runtime inspectable/modifiable tree) and Lua (small, embeddable).
Here are some key features of "Io":
open source BSD license
pure object language
small VM (~16K C statements, 8K Io specific)
small memory footprint (between 64K-200K depending on the platform)
reasonably fast (comparable to Python, Perl, Ruby)
incremental collector, weak links
differential prototype-based object model
ANSI C implementation (except for coroutines)
multi-state (multiple VMs can run in the same application)
64 bit clean.
Io 1.0 keywords