Virtual T is a TRS-80 Model 100/102/200 emulator that runs on Windows, Linux, and Macintosh. The goal of Virtual T is to provide 100% hardware emulation so any existing programs will run. It also adds powerful development and debugging tools.
The `Turing Machine Compiler Collection' (tmcc) contains a virtual machine which emulates a Turing Machine such as an assembler and a C-like compiler which assemble/compile the written code into the delta-notation.
Wireless Land (WL) implements a wifi layer for the User Mode Linux architecture. It comes with a Wireless Land server which provides the virtual wireless cards and a GUI for the network visualisation.
The Network Simulation Environment (NOSE) has the capability to virtually create complex networks including different types of operation systems very cost-efficient on a single computer.