<span lang="IN">In the modern world, the search started for cheap and efficient operating system sources has begun can converted to civilian ends</span><span>.</span><span lang="IN"> Internet of Things (IoT) is one of the most realistic applications for remote control and remote management using a wide network.</span><span lang="EN">In this paper, a control system is designed and built to manage and control traffic lights and street lighting systems, as well as turning on/off generators in a small virtual environment.</span><span> This was implemented by designing and building a hybrid electronic circuit that combines the closed-circuit control system and the open circuit system. The closed circuit regulates the system according to the desired condition without operator interaction; while the open circuit operates on demand. This type of a hybrid control system demonstrated its high flexibility by controlling devices and its high efficiency compared to the closed circuit and the open circuit system independently. It also helps reduce the number of maintenance guys and energy consumption as well as the cost.</span>
The mobile communication system has revolutionized human life and made the world a small village through communications and data transmission in the form of voice calls, messages or videos with very high download speeds. This paper discusses the different communication technologies for mobile phone generations, starting from the first generation of primitive to the second and third generation, in terms of mobile voice technologies, then the fourth generation as signs of rapid data download speed started, as the speed of connection to the fourth generation networks is ten times higher than the generation connection The third, which led to the improvement of data traffic in the communications network, the high mobility recipe for people who make calls, in addition to improving global system management and improving voice quality, then the great revolution in the fifth generation that is characterized by covering all geographical areas with an increase in the high-frequency spectrum, which is characterized at high frequencies starting from 6 GHz to 100 GHz, in addition to comparing all these generations through illustrative tables.
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