Kolesnik, Sergey (8 de diciembre de 2013). «Comparing microcontroller real-time operating systems». «A kernel is not an RTOS, but this can be a confusing issue because of the inappropriate naming chosen for some popular kernels, ‘freeRTOS’ for example.»
«Why RTOS and What Is RTOS?». Consultado el 29 de agosto de 2014. «What is FreeRTOS? … The size constraints, and dedicated end application nature, rarely warrant the use of a full RTOS implementation - or indeed make the use of a full RTOS implementation possible. FreeRTOS therefore provides the core real time scheduling functionality, inter-task communication, timing and synchronisation primitives only. This means it is more accurately described as a real time kernel, or real time executive. …».