Karel
Karel Idea v.1.0
Karel Idea features : Extensive settings about trunk routing and modules of the system are just a-few-click-operations Extensions' parameters such as calling permission, line test, caller ID setting can be set for each extension, individually All
Karel the Robot v.1.1
An implementation of the language described in "Karel the Robot: A Gentle Introduction to The Art of Programming" by Richard Pattis et al.
XKarel v.2.0b5
Karel use simple programing language. Robot knows any elemetary commands. You learn robot more commands. Any new command is small structured program. Program xKarel is one from much todays xKarel's implementations.
Greenfoot v.2. 1. 2001
Consider Greenfoot as a combination between a framework for creating two-dimensional grid assignments in Java and an integrated development environment (class browser, editor, compiler, execution, etc.) suitable for novice programmers.