A tape recorder is a machine that can record the sound you want to record and play it repeatedly in different places. It mainly uses magnetic materials as the carrier of its main application. Most of the tape recorders used at home in the past were tape recorders. The tape recorder includes a lot of content. This recorder has a microphone and a speaker. When recording, it can record people's different voices and generate different corresponding currents, and then record the voices on tape.
The tape recorder was an important invention in the past, because it didn't need people to repeat that sentence all the time, and it could be repeated in different places only once, which was more convenient and portable. From 65438 to 0888, Smith of the United States published a paper on recording, which laid the theoretical foundation for people to know tape recorders at that time.
Ten years later, an inventor in Denmark invented the first tape recorder. However, the steel wire recorder still has many shortcomings, so in 1907, polson improved the recorder to make it a stage for people to use. In the next 20 years, two American inventors invented another method to make the current of the wire recorder more stable in all aspects. More than 30 years after the steel wire recorder appeared, the steel tape recorder appeared, but there is little difference between the tape recorder and the steel wire recorder, but it is similar.
Finally, in 1935, a German general electric company finally invented the tape recorder, which improved the shortcomings of the steel wire tape recorder and made it widely used. With the invention of tape recorder, the discovery of cassette tape has also embarked on a journey. There are many kinds of tape recorders, which can be divided into many kinds according to different types, such as suitable tape recorders and single players.
The above story only represents my personal opinion. Please forgive me if there is any mistake.