, one of the earliest 2-in-1 PCs The earliest device that can be considered a 2-in-1 detachable is the
Compaq Concerto from 1993. It came with
Windows 3.1 and
Windows for Pen Computing, and had a cabled detachable keyboard, and battery powered stylus. In June 1994, IBM introduced the ThinkPad 360P, which features a display that can be rotated backwards and closed down into a pen-operated tablet. , an early 2-in-1, is shown here in tablet mode. Mainstream attention for 2-in-1 PCs was not achieved until nearly two decades later, when many manufactures showed devices, at that time referred to as "hybrid" devices, at
CES 2011. While
Packard Bell,
Acer and
HP all had
Microsoft Windows based 2-in-1s by 2011,
Lenovo released the well reviewed Windows 2-in-1: The X220 Tablet variant of the
ThinkPad X220, successor of 2010's ThinkPad X201 Tablet. The 12-inch device included a digital stylus housed within the chassis, somewhat ruggedized construction, and a multi-touch screen with a twist and fold hinge.
Microsoft started its own line of 2-in-1s with the introduction of the
Surface Pro series, the first of which was released in February 2013. It had a 10.6-inch (27 cm) display,
Intel Core i5 CPU, and included the Pro Pen stylus and a detachable keyboard that doubled as a protective screen cover. In 2015 Microsoft introduced the
Surface Book series, which, similar to the Surface Pro series, features a detachable keyboard cover and Surface Pen stylus.
Samsung entered the 2-in-1 PC market with the release of the Windows-based
Samsung Galaxy TabPro S, which was released in March 2016. It had a 12-inch display, Intel Core m3 CPU, a first-party keyboard attachment, and a TabPro Pen. Its successor, the
Galaxy Book, was released in February 2017. Coming in a 10.6-inch model and a 12-inch model, the Galaxy Book has an improved detachable keyboard and include an
S Pen.
Google entered the 2-in-1 market after it announced the
Pixel Slate in October 2018. It runs on
ChromeOS and features a 12.3-inch display. It includes two
USB-C ports, but it omits the
3.5mm headphone jack. The featured Pixel Keyboard and
Pixelbook Pen are sold separately. Since 2012, a number of other prominent laptop manufacturers, such as
Dell,
Asus, and
Sony have also begun releasing their own 2-in-1s. and
Apple Pencil accessories,
Apple has yet to release a true 2-in-1 PC in a detachable form-factor and with a similar desktop OS, citing the quote below. == Criticism ==