Wireless
Wireless refers to the transmission of data, communication, or power without the use of physical wires or cables. Wireless technologies enable devices to communicate with each other or access network resources over the airwaves, using electromagnetic waves such as radio frequencies, microwaves, or infrared radiation. Wireless communication encompasses various technologies and protocols, including Wi-Fi, Bluetooth, cellular networks, satellite communication, and NFC (Near Field Communication). These technologies provide flexibility, mobility, and convenience, allowing users to connect to the internet, share data, stream media, and communicate wirelessly across different devices and environments. Wireless power transmission, also known as wireless charging, enables the transfer of electrical energy from a power source to a device without the need for physical connections. Wireless technologies play a crucial role in modern society, enabling the proliferation of smartphones, tablets, laptops, IoT devices, and smart home appliances, and facilitating the development of smart cities, autonomous vehicles, and Industry 4.0 applications.
References: - https://en.wikipedia.org/wiki/Wireless_communication
- Snippet from Wikipedia: Wireless
Wireless communication (or just wireless, when the context allows) is the transfer of information (telecommunication) between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common wireless technologies use radio waves. With radio waves, intended distances can be short, such as a few meters for Bluetooth, or as far as millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, and wireless networking. Other examples of applications of radio wireless technology include GPS units, garage door openers, wireless computer mice, keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones. Somewhat less common methods of achieving wireless communications involve other electromagnetic phenomena, such as light and magnetic or electric fields, or the use of sound.
The term wireless has been used twice in communications history, with slightly different meanings. It was initially used from about 1890 for the first radio transmitting and receiving technology, as in wireless telegraphy, until the new word radio replaced it around 1920. Radio sets in the UK and the English-speaking world that were not portable continued to be referred to as wireless sets into the 1960s. The term wireless was revived in the 1980s and 1990s mainly to distinguish digital devices that communicate without wires, such as the examples listed in the previous paragraph, from those that require wires or cables. This became its primary usage in the 2000s, due to the advent of technologies such as mobile broadband, Wi-Fi, and Bluetooth.
Wireless operations permit services, such as mobile and interplanetary communications, that are impossible or impractical to implement with the use of wires. The term is commonly used in the telecommunications industry to refer to telecommunications systems (e.g. radio transmitters and receivers, remote controls, etc.) that use some form of energy (e.g. radio waves and acoustic energy) to transfer information without the use of wires. Information is transferred in this manner over both short and long distances.