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The microphone had its beginnings in the 1870s, with the independent work of David Edward Hughes in England and Émile Berliner in the United States, who developed the first electric carbon microphone between 1876 and 1878, laying the foundation for telephony and sound recording.
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Commercial satellite radio began its development in the 1990s, with companies such as Sirius and XM applying to the FCC for frequencies for their digital broadcasts, and in 1999, WorldSpace made the first commercial transmissions in Africa and the Middle East, while the first in the United States occurred in 2001.
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Digital radio is an audio broadcasting system characterized by the transmission of digital signals. Currently, there are several well-known digital broadcasting systems with worldwide impact, for example: IBOC (In-band On-channel), DAB (Digital Audio Broadcasting), and DRM (Digital Radio Mondiale). Some digital TV systems are also well-suited to broadcasting audio. (This experiment is not over, it works for future generations)
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Social media are digital platforms that allow users, businesses, and institutions to connect, interact, and share content such as text, images, and videos, creating virtual communities based on common interests. They serve to maintain and build relationships, exchange knowledge, stay informed, entertain, and even conduct business transactions. Some of the most popular include Facebook, YouTube, WhatsApp, Instagram, and TikTok. (This too)
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A podcast is an episodic series of digital content, primarily audio, that can be downloaded or listened to online on demand, offering the user the flexibility to consume it whenever they want. The term combines the words "iPod" and "broadcast," reflecting its origin as audio files distributed for portable players. (this one is not finished either and continues to evolve!!)