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http://en.wikipedia.org/wiki/Tablet_computer#Slates
Slates[edit source | editbeta]
Writing slate with sponge (~1950). The slate format is named with a metaphor of this low-tech writing device.
Slates, which resemble writing slates, are tablet computers without a dedicated keyboard. Including the iPad and flagship Android tablets, they are the most popular form factor. For text input, users rely on handwriting recognition via an active digitizer, touching an on-screen keyboard using fingertips or a stylus, or using an external keyboard that can usually be attached via a wireless or USB connection.
A slate's size may vary, starting from 7 inches (approximately 18 cm).[45] In the larger than 10-inch category reside the Toshiba Excite at 13.3 inches[46] and the Dell XPS 18 at 18.4 inches.[47] As of March 2013, the thinnest tablet on the market was the Sony Xperia Tablet Z only 0.27 inches (6.9 mm) thick.[48] |