A tablet computer, commonly shortened to tablet, is a mobile device, typically with a mobile operating system and touchscreen display processing circuitry, and a rechargeable battery in a single, thin and flat package. Tablets, being computers, have similar capabilities, but lack some input/output (I/O) abilities that others have. Modern tablets largely resemble modern smartphones, the only differences being that tablets are relatively larger than smartphones, with screens 7 inches (18 cm) or larger, measured diagonally, and may not support access to a cellular network. Unlike laptops, tablets usually run mobile operating systems, alongside smartphones.
Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen-based mobile devices such as smartphones and tablets. Android has historically been developed by a consortium of developers known as the Open Handset Alliance, but its most widely used version is primarily developed by Google. First released in 2008, Android is currently the world's most widely used operating system; the latest version, released on October 15, 2024, is Android 15.
A mobile operating system is an operating system used for smartphones, tablets, smartwatches, smartglasses, or other non-laptop personal mobile computing devices. While computers such as typical/mobile laptops are "mobile", the operating systems used on them are usually not considered mobile, as they were originally designed for desktop computers that historically did not have or need specific mobile features. This "fine line" distinguishing mobile and other forms has become blurred in recent years, due to the fact that newer devices have become smaller and more mobile, unlike the hardware of the past. Key notabilities blurring this line are the introduction of tablet computers, light laptops, and the hybridization of the two in 2-in-1 PCs.
ChromeOS, sometimes styled as chromeOS and formerly styled as Chrome OS, is a Linux distribution developed and designed by Google. It is derived from the open-source ChromiumOS operating system and uses the Google Chrome web browser as its principal user interface.
The history of tablet computers and the associated special operating software is an example of pen computing technology, and thus the development of tablets has deep historical roots. The first patent for a system that recognized handwritten characters by analyzing the handwriting motion was granted in 1914. The first publicly demonstrated system using a tablet and handwriting recognition instead of a keyboard for working with a modern digital computer dates to 1956.
The Nexus S is a smartphone co-developed by Google and Samsung and manufactured by Samsung Electronics for release in 2010. It was the first smartphone to use the Android 2.3 "Gingerbread" operating system, and the first Android device to support Near Field Communication (NFC) in both hardware and software.
The Motorola Xoom is an Android-based tablet computer by Motorola, introduced at CES 2011 on January 5, 2011. It was the first tablet to be sold with Android 3.0 Honeycomb. The Verizon branded Xoom was the first tablet to run Android 3.1. The Motorola Xoom went through the FCC on February 10, 2011 only 14 days before release. The 3G version was released on February 24, 2011, and the Wi-Fi version was released March 27, 2011. It was announced concurrently with three other products: the Motorola Atrix, the Motorola Droid Bionic, and the Motorola Cliq 2. CNET named it the "Best of the CES" 2011.
The version history of the Android mobile operating system began with the public release of its first beta on November 5, 2007. The first commercial version, Android 1.0, was released on September 23, 2008. The operating system has been developed by Google on a yearly schedule since at least 2011. New major releases are announced at Google I/O in May along with beta testing with the stable version usually released to the public between August and October.
The Verizon Droid Razr is an Android-based, 4G LTE-capable smartphone designed by Motorola that launched on Verizon Wireless on November 11, 2011. It was announced on October 18, 2011 in New York City.
Android Ice Cream Sandwich was the fourth major version of the Android mobile operating system developed by Google. Unveiled on October 19, 2011, Android 4.0 built upon the significant changes made by the tablet-only release Android Honeycomb, in an effort to create a unified platform for both smartphones and tablets. The first phone with Android Ice Cream Sandwich was Samsung Galaxy Nexus.
Windows Phone 8 is the second generation of the Windows Phone mobile operating system from Microsoft. It was released on October 29, 2012, and, like its predecessor, it features a flat user interface based on the Metro design language. It was succeeded by Windows Phone 8.1, which was unveiled on April 2, 2014.
Android Jelly Bean is the codename given to the tenth version of the Android mobile operating system developed by Google, spanning three major point releases. Among the devices that launched with Android 4.1 to 4.3 are the Nexus 7 (2012), Nexus 4, Nexus 10, Nexus 7 (2013), and Hyundai Play X.
Sailfish OS is a paid Linux-based operating system based on free software, and open source projects such as Mer as well as including a closed source UI. The project is being developed by the Finnish company Jolla.
The Nexus 10 is a tablet computer co-developed by Google and Samsung Electronics that runs the Android operating system. It is the second tablet in the Google Nexus series, a family of Android consumer devices marketed by Google and built by an OEM partner. Following the success of the 7-inch Nexus 7, the first Google Nexus tablet, the Nexus 10 was released with a 10.1-inch, 2560×1600 pixel display, which was the world's highest resolution tablet display at the time of its release. The Nexus 10 was announced on October 29, 2012, and became available on November 13, 2012.
A lock screen is a computer user interface element used by various operating systems. They regulate immediate access to a device by requiring the user to perform a certain action in order to receive access, such as entering a password, using a certain button combination, or performing a certain gesture using a device's touchscreen. There are various authentication methods to get past the lock screen, with the most popular and common ones being personal identification numbers (PINs), the Android pattern lock, and biometrics.
Android KitKat is the codename for the eleventh Android mobile operating system, representing release version 4.4. Unveiled on September 3, 2013, KitKat focused primarily on optimizing the operating system for improved performance on entry-level devices with limited resources. As of October 2022, 1.39% of Android devices run KitKat. On July 24, 2023, Google announced that Google Play Services would no longer support KitKat in August of that year. The first phone with Android KitKat was the Nexus 5.
Android Lollipop is the fifth major version of the Android mobile operating system developed by Google and the 12th version of Android, spanning versions between 5.0 and 5.1.1.
The Aquaris M10 and Aquaris M10 FHD are Android tablets from the Spanish manufacturer BQ that were released to market in October 2015. The devices shipped with Android 5.1 (Lollipop). BQ elected not to skin the operating system and as such it retains the unmodified "Google Experience", such as found on the Google Nexus.
Android Nougat is the seventh major version and 14th original version of the Android operating system. First released as an alpha test version on March 9, 2016, it was officially released on August 22, 2016, with Nexus devices being the first to receive the update.
