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Trilithon Protractors is a Mac OS X app for web developers and graphic designers...

Prepare for the Adobe Certified Expert (ACE) product proficiency exam.

ASL Dictionary allows you to learn American sign language.

GRE Calculator is designed to help you with long calculations.

Time Out reminds you to take regular breaks when using a computer for hours to avoid bad habits and over-straining.

Teaches the concepts of decision trees for regular pattern recognition.

Windows

Windows Mac

Joseph Heled

GNU Backgammon

Free

Play a challenging game of backgammon or statistically analyze a game