Tablet computer

tabletstabletTablet PCtablet computersInternet tablettablet PCstablet devicehybrid tabletmini tablet computertablet devices
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.wikipedia
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Mobile operating system

mobile platformsmobile OSmobile
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. Android is a Linux-based operating system that Google offers as open source under the Apache license.
A mobile operating system (or mobile OS) is an operating system for phones, tablets, smartwatches, or other mobile devices.

Cellular network

cellularmobile networkcellular networks
Modern tablets largely resemble modern smartphones, the only differences being that tablets are relatively larger than smartphones, with screens 7 inch or larger, measured diagonally, and may not support access to a cellular network.
This enables numerous portable transceivers (e.g., mobile phones, tablets and laptops equipped with mobile broadband modems, pagers, etc.) to communicate with each other and with fixed transceivers and telephones anywhere in the network, via base stations, even if some of the transceivers are moving through more than one cell during transmission.

IPad (1st generation)

iPadfirst iPadApple iPad
In 2010, Apple released the iPad, the first mass-market tablet to achieve widespread popularity.
The first-generation iPad is a tablet computer designed and marketed by Apple Inc. as the first in the iPad lineup.

Pen computing

pen-based computingpenpen-based
The tablet computer and its associated operating system began with the development of pen computing.
Pen computing is also used to refer to the usage of mobile devices such as tablet computers, PDAs and GPS receivers.

Virtual keyboard

on-screen keyboardbacklitKey Caps
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.
Virtual keyboards are commonly used as an on-screen input method in devices with no physical keyboard, where there is no room for one, such as a pocket computer, personal digital assistant (PDA), tablet computer or touchscreen-equipped mobile phone.

Mobile device

mobile deviceshandheldmobile
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. The rapid scaling and miniaturization of MOSFET transistor technology (Moore's law), the basic building block of mobile devices and computing devices, made it possible to build portable smart devices such as tablet computers.
Early smartphones were joined in the late 2000s by larger, but otherwise essentially the same, tablets.

Digital pen

digitizerpenDigital
The touchscreen display is operated by gestures executed by finger or digital pen (stylus), instead of the mouse, trackpad, and keyboard of larger computers.
Some models can be found on graphics tablets made popular by Wacom, and on tablet computers using Wacom's Penabled™ technology.

ARM architecture

ARMARMv7ARMv8-A
It used Apple's own new Newton OS, initially running on hardware manufactured by Motorola and incorporating an ARM CPU, that Apple had specifically co-developed with Acorn Computers. The devices were manufactured by several manufacturers, based on a mix of: x86, MIPS, ARM, and SuperH hardware.
These characteristics are desirable for light, portable, battery-powered devicesincluding smartphones, laptops and tablet computers, and other embedded systems.

Microsoft Tablet PC

Tablet PCTablet PCsSlate PC
In 2002, Microsoft attempted to define the Microsoft Tablet PC as a mobile computer for field work in business, though their devices failed, mainly due to pricing and usability decisions that limited them to their original purpose - such as the existing devices being too heavy to be held with one hand for extended periods, and having legacy applications created for desktop interfaces and not well adapted to the slate format.
Hundreds of such tablet personal computers have come onto the market since then.

EO Personal Communicator

AT&T EO 440AT&T EO Personal Communicator, 1993EO
Also based on PenPoint was AT&T's EO Personal Communicator from 1993, which ran on AT&T's own hardware, including their own AT&T Hobbit CPU.
The EO is an early commercial tablet computer that was created by Eo, Inc. (later acquired by AT&T Corporation), and released in April 1993.

Operating system

operating systemsOScomputer operating system
An essential feature of a 2-in-1 is a desktop operating system, such as Windows 10, as opposed to a mobile operating system.
In the mobile (including smartphones and tablets) sector, Google Android's share is up to 70% in the year 2017.

Linux

GNU/LinuxLinux on the desktopLin
Android is a Linux-based operating system that Google offers as open source under the Apache license.
Many smartphones and tablet computers run Android and other Linux derivatives.

Smart device

smart devicesconnected devicessmart
The rapid scaling and miniaturization of MOSFET transistor technology (Moore's law), the basic building block of mobile devices and computing devices, made it possible to build portable smart devices such as tablet computers.
Several notable types of smart devices are smartphones, smart cars, smart thermostats, smart doorbells, smart locks, smart refrigerators, phablets and tablets, smartwatches, smart bands, smart key chains, smart speakers and others.

PenPoint OS

PenPointPensoft
In 1992, IBM announced (in April) and shipped to developers (in October) the 2521 ThinkPad, which ran the GO Corporation's PenPoint OS.
The PenPoint OS was a product of GO Corporation and was one of the earliest operating systems written specifically for graphical tablets and personal digital assistants.

Microsoft

Microsoft CorporationMicrosoft Corp.MS
In April 2000, Microsoft launched the Pocket PC 2000, using their touch capable Windows CE 3.0 operating system.
This unfolded with Microsoft acquiring Danger Inc. in 2008, entering the personal computer production market for the first time in June 2012 with the launch of the Microsoft Surface line of tablet computers, and later forming Microsoft Mobile through the acquisition of Nokia's devices and services division.

GRiDPad

Following earlier tablet computer products such as the Pencept PenPad, and the CIC Handwriter, in September 1989, GRiD Systems released the first commercially successful tablet computer, the GRiDPad.
The GRiDPad was a pen computing tablet built by GRiD Systems Corporation in 1989.

Computer

computerscomputer systemdigital computer
The rapid scaling and miniaturization of MOSFET transistor technology (Moore's law), the basic building block of mobile devices and computing devices, made it possible to build portable smart devices such as tablet computers.
These smartphones and tablets run on a variety of operating systems and recently became the dominant computing device on the market.

X86

x86 architectureIntel x8680x86
The devices were manufactured by several manufacturers, based on a mix of: x86, MIPS, ARM, and SuperH hardware.
As of 2018, the majority of personal computers and laptops sold are based on the x86 architecture, while other categories—especially high-volume mobile categories such as smartphones or tablets—are dominated by ARM; at the high end, x86 continues to dominate compute-intensive workstation and cloud computing segments.

Handwriting recognition

handwritinggesture alphabetshandwriting recognizer
Some ARM powered tablets, such as the Galaxy Note 10, support a stylus and support handwriting recognition.
In the early 1990s, hardware makers including NCR, IBM and EO released tablet computers running the PenPoint operating system developed by GO Corp..

Modbook

Axiotron Modbook15.4-inch Retina MacBook ProTablet Mac
Before the release of iPad, Axiotron introduced an aftermarket, heavily modified Apple MacBook called Modbook, a Mac OS X-based tablet computer.
The Modbook is a brand of a pen-enabled Mac tablet computers first manufactured by Axiotron, Inc. from 2008 to 2010, and then by Modbook Inc. from 2012 to present.

Apple Inc.

AppleApple ComputerApple Inc
In 2010, Apple released the iPad, the first mass-market tablet to achieve widespread popularity.
On January 27, 2010, Apple introduced their much-anticipated media tablet, the iPad.

Sony

Sony CorporationSony ElectronicsSony Corp.
Another important enabling factor was the lithium-ion battery, an indispensable energy source for tablets, commercialized by Sony and Asahi Kasei in 1991.
In a bid to join the tablet computer market, the company launched its Sony Tablet line of Android tablets in 2011.

Smartphone

smartphonessmart phonesmart phones
Modern tablets largely resemble modern smartphones, the only differences being that tablets are relatively larger than smartphones, with screens 7 inch or larger, measured diagonally, and may not support access to a cellular network.
A mobile operating system (or mobile OS) is an operating system for phones, tablets, smartwatches, or other mobile devices.

Laptop

laptop computerlaptopsnotebook computer
Some 2-in-1s have processors and operating systems like those of laptops, while having the flexibility of operation as a tablet.
These include Asus's Transformer Pad devices, examples of hybrids with a detachable keyboard design, which do not fall in the category of 2-in-1s.

Android (operating system)

AndroidAndroid operating systemList of Android devices
The first LTE Android tablet appeared late 2009 and was made by ICD for Verizon.
Android is a mobile operating system based on a modified version of the Linux kernel and other open source software, designed primarily for touchscreen mobile devices such as smartphones and tablets.