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Scottish professor Alexander Graham Bell invented the first telephone set. It worked in a very basic way, and either you heard or spoke, you couldn't do both at the same time. He had a wooden box, which functioned as a battery.
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With the shape of a “candlestick”, this phone worked with the use of a hand crank, where the signal was sent to an operator, who completed the call.
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The classic model of telephone was developed, where a ring was rotated to dial the desired number. Even today, some households rely on this device, either to make calls or as a decorative aspect.
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In 1965, the first “flip” phone model was created. There were still no buttons on it and it was also necessary to rotate the ring to dial
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Fixed telephones appear with buttons to make calls. Although it is an old model, it is still widely used today, both in the domestic environment and in commercial environments.
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The cordless phone is created, a real leap in technology for the time, allowing users to walk within a certain distance while talking on the phone. This device works through a base, connected to the outlet and a telephone connection.
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In the early 90s, Motorola launched the first cell phone model in Brazil. This device already had a display to see the numbers entered. It became known as “brick”, due to its large size.
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In the 2000s, cell phones with a color display and different designs appeared. In fact, in 2002 they get one more accessory: the digital camera.
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first cell phone models with the ability to store music files (MP3)
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We arrived at the year when Apple revolutionized the cell phone market and launched the iPhone, a touchscreen device, its own operating system that allowed applications to run. The first smartphone (smart phone) is born
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Smartphones with QWERTY keyboards (a version of the computer keyboard, compacted to the size of the cell phone) are being produced.
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New smartphone models are launched with unique operating systems and several applications. In addition, most cell phones already support internet connection and the photos taken with the camera have better definition.
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the most current models where smartphones with a huge range of features, such as front cameras, unlocking the screen through digital, among others. Today, many companies are increasingly investing in customized versions of applications to facilitate their interaction with users.
