Tashkent University of Information Technology 040-21 group student Yuldashev Khursand’s 1-Presentation of English

Telecommunications - is the transmission of information using various types of technologies via wires, radio, optical or other electromagnetic systems. It originates in people's desire to communicate at a distance greater than is possible with a human voice, but with a similar scale of expediency; thus, slow systems (such as postal mail) are excluded from the field.The means of transmission in telecommunications have evolved through numerous stages of technology, from beacons and other visual signals (such as smoke signals, semaphore telegraphs, signal flags and optical heliographs) to electric cable and electromagnetic radiation, including light. Such transmission paths are often divided into communication channels that provide the advantages of multiplexing multiple simultaneous communication sessions. Telecommunications are often used in the plural.

Some examples of pre-modern long-distance communication included audio messages such as coded drum beats, light horns, and loud whistles. Technologies of the 20th and 21st centuries for long-distance communication usually include electrical and electromagnetic technologies such as telegraph, telephone, television and teleprinter, networks, radio, microwave transmission, optical fiber and communication satellites.The revolution in wireless communication began in the first decade of the 20th century with the pioneering developments in the field of radio communications by Guglielmo Marconi, who received the Nobel Prize in Physics in 1909, and other famous inventors-pioneers and developers in the field of electrical and electronic telecommunications.

The word telecommunication is a composite of the Greek prefix tele (τῆλε), meaning far, far, far away, and the Latin communicare, meaning to share.Its modern usage is adapted from French because its written usage was recorded in 1904 by the French engineer and novelist Edouard Estonier. it was first used as an English word in the late 14th century. It comes from the Old French comunicacion (14th century, modern French communication), from the Latin communicationem (nominative communicatio), an action noun from the past participle of the communicare basis "to share, to share; to communicate, to transmit, to inform; to join, unite, participate", literally "to make common", from communis"