Mobile phone is a kind of portable electronic communication equipment, which can make voice calls, short messages, network communication, take photos, video, play music, games and other functions. It usually consists of screen, battery, camera, speaker, microphone, operating system, application program, etc.
History of mobile phones
The first mobile phone was invented by Motorola in 1973. Its name is "Dynatac8000X" and its price is as high as $3,995. It can only talk and has no other functions.
1992, Nokia introduced the first mobile phone with SMS function-Nokia101,which marked that the mobile phone entered the era of function machine.
In 2007, Apple introduced the first smart phone-iPhone, and its operating system was iOS, which led the trend of smart phones.
The influence of mobile phones
Communication is more convenient. The emergence of mobile phones allows people to communicate with others anytime and anywhere, breaking the limitations of time and space.
Life is more convenient. Mobile phones can not only communicate, but also perform online shopping, payment, reservation, navigation and other functions, making life more convenient.
Socialization is more extensive. Mobile phones can communicate with people all over the world through social software, making social interaction more extensive and diversified.
Health problems. Long-term use of mobile phones will have adverse effects on eyes, cervical vertebrae and fingers. So pay attention to the use time and posture.
Social problems. The popularity of mobile phones has also brought some social problems, such as mobile phone dependence and cyber violence, which need to be paid attention to.