Basics 1. Windows Vista OS to Ubuntu OS 2. Internet Explorer Browser to Firefox Browser Office Suites 3. Microsoft Office to OpenOffice 4. Mactopia to NeoOffice Office Tools 5. MathWorks MATLAB to Scilab 6. Microsoft Access to Kexi 7. Microsoft Word to OpenOffice Writer 8. Microsoft Excel to OpenOffice Calc 9. Microsoft Visio to DiaContinue reading “Top 50 Proprietary Software and their Open Source alternatives”