Radio and telephone are often scientifically and technically linked to each other. The phone came after radio with the advancement of technology. Radio is a one-way transmission, while the phone is a two-way transmission.

People generally think that radio is only limited to the use of radio stations that broadcast a broadcaster who speaks and plays music, but radio waves are also used to send and receive data, such as satellite broadcasts.

The creation of radio began in the mid 1800s with theoretical discussions of electricity and magnetism related to each other. The first wireless experiments were carried out by James Maxwell. Other scientists who contributed to the development of the radio were William Henry Ward, Mahlon Loomis, Thomas Edison and Marconi. Various audio streams were also broadcast. Commercial broadcasting increased with the opening of radio stations in all major US cities. USA And in the main capitals of Europe.

The 1920s really was the birth of modern radio, the massive development of radios made it possible for almost every home to have a radio that occupied a privileged place in the family living room and around which the whole family would gather. every night.

When the phone was invented, it was surprising to believe the basic change that a single invention brought to the world. The phone was a blessing to talk to your loved ones or business colleagues at any distance from the comfort of your home without any effort. Due to the modern invention of mobile phones and Internet facilities, the primary change to society that was caused by the invention of the phone is less considered.

The demerit of the first telephone exchanges was that they were locally based, allowing a user to only speak to another user at his own exchange by asking an operator to connect the call and if calls to other local exchanges were required, the operator would connect to the next operator in a sequence to connect the call.

The actual home phone device underwent major developments in the 1920s with the addition of a phone that includes both the earpiece and the microphone. This was the first time that users spoke while moving, sitting, or standing instead of staying in one position with one ear pressed against the handset, which was part of the base unit.
Large-scale consumer uptake of mobile phones began in the late 1980s and early 1990s. Although in 2005, mobile phone connections in developed countries had exceeded the number of fixed line connections.

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People generally think that radio is only limited to the use of radio stations that broadcast a broadcaster.