Mobile phone

A mobile phone or cell phone is a portable wireless telephone. It lets people make and receive calls while moving around. Mobile phones use a special radio frequency to connect to a network. This lets users stay in touch, no matter where they are. The network is called a cellular network, which is why they are often called "cell phones."

Over time, mobile phones have done much more than just voice calls. They now support text messaging, email, and internet access. They can also take pictures, play games, and give directions. Some phones, called smartphones, are very powerful and can do even more.

The very first handheld mobile phone was shown by Martin Cooper of Motorola in New York City in 1973. Since then, mobile phones have become very popular all around the world. Today, they are used by billions of people and are considered one of the most important inventions in modern life.

Name

A mobile phone is also called a cell phone, especially in North America. These are shorter ways to say "mobile telephone" and "cellular telephone." People often just call it a "phone," "mobile," or "cell."

History

Main article: History of mobile phones

See also: List of wireless network technologies

Mobile phones have changed a lot since they were first made. The idea of a small, portable telephone started with radio. After World War II, inventors worked to make portable phones.

In 1973, two inventors from Motorola made the first handheld mobile phone. It was heavy, about 2 kilograms, but it worked! The first mobile phone call happened in 1979 in Japan, and soon many countries started their own networks. These early phones used a technology called analog.

In the 1990s, a new digital technology called GSM started in Finland. This let people send text messages and have better quality calls. Over time, phones got smarter and faster. By the early 2000s, phones could connect to the internet and send pictures. Today, we have 5G, which makes everything faster and helps with online games and watching videos on your phone.

Types

Smartphone

Main article: Smartphone

Smartphones are advanced phones that can connect to the internet and run many different apps. They are very popular in countries with lots of technology. In places where technology is still growing, about half of all mobile phones are smartphones.

Feature phone

Main article: Feature phone

Feature phones are simpler phones that can do more than just make calls and send texts. They can use the internet a little and look at multimedia, but they are not as advanced as smartphones. These phones often have special software made just for them.

Infrastructure

Main articles: Cellular network and Wi-Fi

Modern mobile phones use a system called a cellular network. This system lets many people talk on their phones at the same time in the same place. Cellular networks split areas into small parts called cells. Each cell has its own tower. These towers use different radio frequencies so calls do not get mixed up.

When you move from one cell to another, your phone switches to a new tower. This keeps your call going without stopping. This helps everyone stay connected, even in busy places like cities. Sometimes, extra towers are added for big events or emergencies. Digital technology helps by letting one frequency handle many calls at once. Smartphones often use Wi-Fi when they can to save space on the mobile network.

Hardware

Mobile phones have important parts that help them work. These include a brain called a central processing unit (CPU), a battery for power, a way for you to type or touch the screen, a screen to show information, speakers for sound, and special cards that help the phone connect to networks.

Older phones, called feature phones, have simpler parts and do basic things like making calls. Newer phones, called smartphones, have more powerful parts and can run many apps. The screen is a big part of most phones today, and they can be small or very large. Phones also need special cards to work and connect to the network, which help you switch between different phones easily.

Software

Main article: Mobile operating system

Mobile phones have different kinds of software. Simple phones have basic software. Smartphones use full operating systems. The two most popular systems are Android and iOS. Android is the most used system worldwide. iOS is also very popular.

Main article: Mobile app

A mobile app is a program for a smartphone. One common feature of mobile phones is text messaging, known as Short Message Service (SMS). The first SMS message was sent in 1992. Later, Multimedia Messaging Service (MMS) was introduced in 2002, allowing pictures to be sent.

Main article: List of mobile app distribution platforms

In 2008, Apple introduced the App Store for iPhones. This made it easier for people to download apps. Other phone makers created their own app stores, like Google's Android Market (now called the Google Play Store). Today, most app developers make apps for smartphones.

Sales

See also: List of best-selling mobile phones and List of mobile phone brands by country

As of 2022, the top five companies making mobile phones were Samsung, Apple, Xiaomi, Oppo, and Vivo.

In the early days, from 1983 to 1998, Motorola was the top maker of mobile phones. Then Nokia led from 1998 to 2012. In early 2012, Samsung sold more phones than Nokia and has stayed in the top spot since then.

The biggest mobile service company in the world is China Mobile, with many customers. By the end of 2009, over 150 mobile companies had at least one million customers. In 2014, many people around the world used mobile phones, and this number keeps growing.

Use

Mobile phones are used for many things. People use them to talk to family and friends, for work, and to stay safe in emergencies. Some people carry more than one mobile phone. They might have one for work and another for personal calls. They might also use different phone plans with multiple SIM cards to save money.

Mobile phones have changed how people live and talk to each other. They help people share news quickly, support important causes, and connect people in places without regular phones. In some areas, families or groups share mobile phones so everyone can stay connected. They are also useful for health, like helping people with diabetes track their health and get support.

Culture and popularity

See also: SMS language and Xelibri

Mobile phones are very popular because many people use and buy them. They have become important in culture. For example, in Japanese mobile phone culture, people often decorate their phones with charms, and phones can be a fashion statement. Phones like the Motorola Razr V3 and LG Chocolate were famous for looking stylish.

Text messaging on mobile phones created new ways of talking, such as 'SMS language' and the use of emojis. Some people see having certain phones, like an Apple iPhone, as a sign of their status.