Virtual Box – Open Source Virtualizer

VirtualBox is a general-purpose full virtualizer for x86 hardware. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source. By default VirtualBox will be compiled with hardening enabled. That means all binaries will be run suid root, which is the default behaviour of upstream packages. However, you are still able to disable this by passing HARDENING=no to the script.

GraphCalc

Open Source Calculator for Windows

GraphCalc is an open source computer program that runs in Microsoft Windows and Linux that provides the functionality of a graphing calculator.

Graphviz - Graph visualization

Graphviz is open source graph visualization software. Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks. It has important applications in networking, bioinformatics, software engineering, database and web design, machine learning, and in visual interfaces for other technical domains.

NewGenLib

Open Source Library Management System

NewGenLib is an integrated library management system with modules for – Acquisitions, Technical Processing, Serials management, Circulation, Administration, MIS Reports, Task to do today (daily scheduler), and many more.