Internet of things

Internet of things is an idea from computer science: connecting ordinary things like lights and doors to a computer network to make them "intelligent". An embedded system or a computer connects each thing together in a network and to the internet. Some technologies used for the internet of things are RFID and mesh nets. 
The connections allow each thing to collect and exchange data, and we can control them remotely or by setting rules or chains of actions. IoT improves the ease of life of humans and their daily activities. Experts estimate that the IoT will consist of almost 50 billion objects by 2020.
Examples.
Examples where the internet of things has become reality:
History.
M2M, or Machine to Machine communication, was the first iteration of the IoT back in the 1980s. Early traces of this technology are also found in SCADA, or Supervisory Control and Data Acquisition. As technology has continued to develop and new devices emerged, the M2M and SCADA technology gave way to IoT and a new age of data collection and transmission.
Criticism.
These ideas have also been criticized. The main points of criticism are the following: