CCNA Practice Tests 

Practice tests for Cisco Certified Network Associate conform the latest exam objectives. The package contains 225+ questions with most questions carrying detailed explanations. Several simulation questions have been added in the latest version.
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Atoms, Bonding and Structure 

Unique interactive multimedia Chemistry teaching software. Topics include: elements, compounds, mixtures, atomic structure, ionic bonding, covalent bonding, bond energies and the Periodic Table.
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Ticker Tycoon 

Ticker Tycoon puts you against the computer in a fun and addictive stock market simulation game. Gamble and learn without losing a cent! Includes stock options trading, news events, company earnings reports, and variable levels of difficulty.
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Adastra FREESTAR 

Experience accessible astronomy with a real-time sky, comprehensive reports, arcsecond accuracy, and exciting events such as animation and live tracking.
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Adastra Plus 

Experience complete astronomy with a real-time sky, comprehensive reports, arcsecond accuracy, and exciting events such as animation and live orbit-tracking. Sky Quiz and two encyclopedic reference sources are interactively linked to the sky display
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MOBOTSIM 

Configurable 2D simulator of mobile robots. Features a graphical interface where robots and objects are easily configured and a BASIC editor for simulation development.
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