The Remedy debugger was the first embedded system level debugger in the world. It offered many features that users take for granted today in the days when having a source level debugger was a luxury. Some of these features include: * Multiprocessor operation * Heterogeneous * Distributed * Dynamic thread view of the system * Synchronized debugging for multiple threads * Trace functions * Operating system resource displays * Source and assembly level debugging The current version of Unison Operating System continues to use both gdb and Remedy debugger.