A Survey on Different Real Time Operating Systems
Santhosh M S1, Nagaraja G S2

1Santhosh M S*, Student, Department of Computer Science and Engineering, Rashtreeya Vidyalaya College of Engineering, Bengaluru (Karnataka), India.
2Dr. Nagaraja G S, Professor & Associate Dean, Department of Computer Science and Engineering, Rashtreeya Vidyalaya College of Engineering, Bengaluru (Karnataka), India.

Manuscript received on June 04, 2021. | Revised Manuscript received on June 11, 2021. | Manuscript published on June 30, 2021. | PP: 221-223 | Volume-10 Issue-5, June 2021. | Retrieval Number: 100.1/ijeat.E27620610521 | DOI: 10.35940/ijeat.E2762.0610521
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: To minimise development costs and enhance dependability, modern embedded system development is increasingly emphasising on software modularity and reuse. Microcontrollers are extensively employed in embedded applications that have a very specific and specialised job to complete. The embedded applications are always resource constraint which requires efficient utilization of available resources. A Real Time Operating System (RTOS) is frequently used in this context to plan task execution as well as enable intertask communication and synchronisation. This paper provides the survey of different RTOS available in market and their applications. Several open source RTOS such as Free RTOS, VxWorks, SmallRTOS and TinyOS are compared with respect to the scheduling algorithms used. 
Keywords: RTOS, Scheduler, Event Objects