The iPhone is one of the most iconic and revolutionary products of the 21st century. It is a line of smartphones developed and marketed by Apple Inc. It was first released on June 29, 2007 and has since gone on to become one of the most popular and widely used phones in the world. The iPhone is known for its sleek design, intuitive interface and powerful hardware. The iPhone has a wide range of features, including a Multi-Touch screen, a virtual keyboard, a web browser, various multimedia capabilities, a camera, a wide range of applications, and the ability to connect to the internet. The Multi-Touch screen allows users to navigate the device with the use of their fingers, allowing for a more intuitive experience. The virtual keyboard is used to enter text and the web browser allows for browsing the internet. The camera on the iPhone allows for taking pictures and videos, and the various multimedia capabilities allow for watching movies, listening to music, and playing games. The App Store is a major feature of the iPhone, as it provides users with access to thousands of applications, allowing them to customize their device to their own liking. The App Store contains a wide range of applications, including games, productivity tools, social media apps, and more. The iPhone also has the ability to connect to the internet, allowing users to browse the web, check emails, and do other tasks. The iPhone has revolutionized the way people communicate and interact with the world. It has allowed people to be connected to the internet and to each other at all times. It has also enabled people to access a wealth of information and resources, allowing them to stay informed and up-to-date. The iPhone has become an integral part of many people’s lives, and it has changed the way people think about technology. The iPhone is a line of smartphones designed and marketed by Apple Inc. It runs Apple’s iOS mobile operating system. The first generation iPhone was released on June 29, 2007, and multiple new hardware iterations with new iOS releases have been released since. The user interface is built around the device’s multi-touch screen, including a virtual keyboard. The iPhone has Wi-Fi and can connect to cellular networks. An iPhone can take photos, play music, send and receive email, browse the web, send and receive text messages, record notes, perform mathematical calculations, and receive visual voicemail. Other features include a 3.5-inch (89 mm) widescreen display, bluetooth, and GPS navigation. The iPhone has received positive reviews, with critics praising its software, hardware, and design. It has been credited with popularizing the smartphone industry, with its multitouch interface, gesture recognition, and use of a virtual keyboard. The iPhone has also been credited with accelerating the trend of mobile computing away from laptops. Millions of iPhones have been sold worldwide since its initial release. The iPhone has become one of the most widely used digital devices in history. It has been estimated that over one billion iPhones have been sold since 2007, which would make it the most successful product of its kind. Apple has released twelve generations of iPhone models, each accompanied by one of the twelve major releases of the iOS operating system. The most recent iPhone models are the iPhone 11, 11 Pro, and 11 Pro Max, which were released in September 2019. The iPhone is a line of smartphones designed and marketed by Apple Inc. It runs Apple’s iOS mobile operating system. The first-generation iPhone was released on June 29, 2007, and multiple new hardware iterations with new iOS releases have been released since. The user interface is built around the device’s multi-touch screen, including a virtual keyboard. The iPhone has Wi-Fi and can connect to cellular networks. An iPhone can take photos, play music, send and receive email, browse the web, send and receive text messages, record notes, perform mathematical calculations, and receive visual voicemail. Other functionality, such as video games, reference works, and social networking, can be enabled by downloading mobile apps. The iPhone has a minimal hardware user interface, with most models featuring five buttons. The only physical menu button is situated directly below the display, and is called the “Home button” because it closes the active app and navigates to the home screen of the interface. The home screen can be accessed by a hardware button below the display, closing the open application in the process. The iPhone allows users to purchase and download songs from the iTunes Store directly to their iPhone. The feature originally required a Wi-Fi network, but since 2012, it can be used on a cellular data network. The iPhone can sort its media library by songs, artists, albums, videos, playlists, genres, composers, podcasts, audiobooks, and compilations. The iPhone has a 3.5-inch (89 mm) touchscreen display, known as the Retina Display. It has a resolution of 640×960 pixels at 326 ppi, which is four times the number of pixels in the original iPhone’s display and is the highest resolution display ever built into a phone. The display responds to other sensors, including a proximity sensor that turns off the display and touchscreen when the device is brought close to the face during a call. The iPhone has an internal rechargeable lithium-ion battery. It is charged by an AC adapter or a USB connection to a computer. Like an iPod, but unlike most other mobile phones at the time of its launch, the battery is not user-replaceable. The iPhone can be charged when connected to a computer for syncing across the included USB to dock connector cable, similar to charging an iPod. Alternatively, a USB to AC adapter (or “wall charger”, also included) can be connected to the cable to charge directly from an AC outlet.
