Defining IOT 2021

1-Internet of Things
Definition and Few essential Features

Internet of Things (IoT) term represents a general concept for the ability of network devices to sense and collect data from around the world, and then share that data across the Internet where it can be processed and utilized for various interesting purposes. The IoT is comprised of smart machines interacting and communicating with other machines, objects, environments and infrastructures.

Few features

• Ø  The devices in IoT can be controlled remotely to perform the desired functionality.
• Ø  The information sharing among the devices then takes place through the network which employs the standard protocols of communication.
• Ø  The smart connected devices or ‘‘things’’ range from simple wearable accessories to large machines, each containing sensor chips. For instance, the Lenovo smart shoes contain chips which provide support of tracking and analyzing fitness data .
• Ø  Similarly, the electrical appliances including washing machines, and refrigerators can be controlled remotely through IoT.
• Ø  The security cameras installed for surveillance of a location can be monitored remotely anywhere in the world.
• Ø  Apart from the personal use, IoT serves the community needs as well. Various smart devices which perform diverse functionalities such as monitoring surgery in hospitals, detecting weather conditions, providing tracking and connectivity in automobiles, and identification of animals using biochips are already serving the community specific needs.
• Ø  The data collected through these devices may be processed in real-time to improve efficiency of the entire system.
• Ø  The future significance of IoT is evident due to its application in everyday life. It continues to grow rapidly due to evolution of hardware techniques such as improving bandwidth by incorporating cognitive radio based networks to address underutilization of frequency spectrum
• Ø  Wireless Sensor Networks (WSNs) and Machine-to-Machine (M2M) or CyberPhysical Systems (CPS) have now evolved as integral components for the broader term IoT.
• Ø  Consequently, the security problems related to WSN, M2M, or CPS continue to arise in the context of IoT with the IP protocol being the main standard for connectivity. may pose threat to privacy, integrity or confidentiality of data. Since the IoT paradigm represents a collection of interconnected networks, and heterogeneous devices, it inherits the conventional security issues related to the computer networks. The constrained resources pose further challenges to IoT security since the small devices or things containing sensors have limited power and memory. Consequently, the security solutions need to be adapted to the constrained architectures.