The network uses physical links to connect isolated workstations or hosts together to form data links, so as to achieve the purpose of resource sharing and communication. Communication is the exchange and transmission of information between people through a certain medium. Network communication is to connect various isolated devices through the network, and realize the communication between people, people and computers, and computers and computers through information exchange. The most important thing in network communication is the network communication protocol. There are many network protocols today. There are three most commonly used network protocols in local area networks: MICROSOFT's NETBEUINOVELL's IPX/SPX and TCP/IP protocols. The appropriate network protocol should be selected according to the needs.
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From the car refers to the products used in the car, which is convenient to use in the car. The most common car MP3, MP4, GPS, car DVD, car car machine, car power supply, car, car massager, car computer products are used. Usually sent through the car point, car TV, these car U disk and so on.
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Home automation refers to the use of microprocessor electronic technology to integrate or control electrical and electronic products or systems in the home, such as lighting, coffee stoves, computer equipment, security systems, heating and cooling systems, video and audio systems, etc. The home automation system mainly uses a central microprocessor (CentralProcessor Unit, CPU) to receive information from related electronic and electrical products (changes in external environmental factors, such as changes in light caused by the rising or setting of the sun, etc.) Send appropriate information to other electrical and electronic products with established procedures. The central microprocessor must control the electrical products in the home through many interfaces. These interfaces can be keyboards, touch screens, buttons, computers, telephones, remote controls, etc.; consumers can send signals to the central microprocessor computer, or receive signals from the central microprocessor.
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The Internet of Things refers to the connection of any object with the network through information sensing equipment according to the agreed protocol, and the object exchanges and communicates information through the information transmission medium to realize intelligent identification, positioning, tracking, supervision and other functions. There are two key technologies in IoT applications, namely sensor technology and embedded technology.
Today's information technology is so dependent on human-generated information that our computers know more about ideas than matter. If computers could learn all kinds of information that can be obtained in the physical world without our help, we would be able to track and measure those substances, reducing waste, loss and consumption. We will know when items need to be replaced, repaired or recalled, whether they are new or past their expiration date. The Internet of Things has the potential to change the world, just like the Internet, if not more profound.
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