Tablet computer

For the computer input device, see Graphics tablet. For other uses, see Tablet.

"Tablet PC" redirects here. For the class of Microsoft Windows-based tablets, see Microsoft Tablet PC.

Two large-sized tablet computers shown: the iPad Pro (1st generation) from 2015 at 12.9 inches diagonally (top), and the Samsung Galaxy Tab S8 Ultra from 2022 at 14.6 inches diagonally (bottom).

A small and one-handed tablet computer, the iPad Mini (6th generation).

A tablet computer, commonly shortened to tablet or simply tab, 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. Many modern tablets are based on smartphones, the only differences being that tablets are relatively larger than smartphones, with screens from around 7 inches (18 cm) to 14.6 inches (37 cm) measured diagonally, and may not support access to a cellular network. Unlike laptops (which have traditionally run off operating systems usually designed for desktops), tablets usually run mobile operating systems, alongside smartphones.

The touchscreen display is operated by gestures executed by finger or digital pen (stylus), instead of the mouse, touchpad, and keyboard of larger computers. Portable computers can be classified according to the presence and appearance of physical keyboards. Two species of tablet, the slate and booklet, do not have physical keyboards and usually accept text and other input by use of a virtual keyboard shown on their touchscreen displays. To compensate for their lack of a physical keyboard, most tablets can connect to independent physical keyboards by Bluetooth or USB; 2-in-1 PCs have keyboards, distinct from tablets.

The form of the tablet was conceptualized in the middle of the 20th century (Stanley Kubrick depicted fictional tablets in the 1968 science fiction film 2001: A Space Odyssey) and prototyped and developed in the last two decades of that century. In 2010, Apple released the iPad, the first mass-market tablet to achieve widespread popularity. Thereafter, tablets rapidly rose in ubiquity and soon became a large product category used for personal, educational and workplace applications. Popular uses for a tablet PC include viewing presentations, video-conferencing, reading e-books, watching movies, sharing photos, and more. As of 2021 there are 1.28 billion tablet users worldwide according to data provided by Statista. Currently Apple holds the largest manufacturer market share followed by Samsung and Lenovo.