operating system

System info utility for Mac OS X

Build games compatible with many operating systems.

The Open Source 2D CAD System For Everyone

Accounting for the German tax system.

Complete e-book library management system.

Professional media production system.

Precision solar-system simulator/calculator with interactive 3D views.

Monitor your system right from the menubar.

Scan files, locations, or your entire system for viruses.

Advanced system monitor.