International Journal of Computational Linguistics Research Neven Nikolov 12 2 2021 https://doi.org/10.6025/jcl/2021/12/2/52-58 https://www.dline.info/jcl/fulltext/v12n2/jclv12n2_3.pdf We have studied the embedded systems and the difference in the communication protocols used in IoT devices. We then detailed the characteristics of each feature contained in it. The advantages and disadvantages and the features such as security, power consumption and usage are also addressed in this work.