shRadio+History

​ The history of the radio

The **radio** was built in April 1872 by Willam Henrry Ward. Willam receved the U.S panented for the **radio** development. Originally the radio or radiotelegraphy was called "wireless telegraph", which was shortened to "wireless" by the British. The prefix radio//,// in the way of wireless transmission, was first recorded in the word //radioconductor//, coined by the French physicist Édodry Branly in 1897 and based on the verb //to radiate.// Radio,as a noun is said to have been coined by the advertising expert Waldo Warren (1944). This word also appears in a 1907 article by Lee De Forest, was adopted by the United States Navy in 1912 and became common by the time of the first commercial broadcasts in the U.S in the 1920s. ( the word, boradcast manly means scattered widely). The term was then adopted by other languages in Europe and Asia. British Commonwealth countries continued to mainly use the term wireless, until the mid-20th century, though the magazine of the BBC in the UK has been called __Radio Times__ ever since it was first published in the early 1920s. In recent years the term "wireless" has gained renewed popularity through the rapid growth of short-range computer networking, e.g., Wireless loacl Area Network (WLAN), WiFi, and Bluetooth, as well as mobile telephony, e.g., GSM. Today, the term "radio" often refers to the actual transceiver device or chip, where as "wireless" refers to the system or method used for radio communication, hence one talks about //radio// transceivers and //Radio// Frequency Identification (RFID), but about //wireless// devices and //wireless// sensor networks.