Is the Arduino program environment that runs the uploaded sketch (the bootloader) an RTOS?
(the reason behind the question....)
I am in college and my senior research project is Embedded Programming. For the purposes of my research and practice, the Computer Science department bought me an arduino 0007, so I have been playing with it and developing programs and such (its been great to get my programming abilities away from that silly PC).
In my research I am learning about the RTOS (real time operating system) that is the cornerstone of larger embedded products ( cell phone, graphing calculator, etc.).