Alan Curtis Kay (born May 17, 1940) is an American computer scientist, known for his early pioneering work on object-oriented programming and windowing graphical user interface design. He is the president of the Viewpoints Research Institute, and an Adjunct Professor of Computer Science at the University of California, Los Angeles. He is also on the advisory board of TTI/Vanguard. Until mid 2005, he was a Senior Fellow at HP Labs, a Visiting Professor at Kyoto University, and an Adjunct Professor at the Massachusetts Institute of Technology (MIT).

Kay is one of the fathers of the idea of object-oriented programming, which he named, along with some colleagues at PARC and predecessors at the Norwegian Computing Center. He conceived the Dynabook concept which defined the conceptual basics for laptop and tablet computers and E-books, and is the architect of the modern overlapping windowing graphical user interface (GUI). Because the Dynabook was conceived as an educational platform,

Below is picture of Dynabook:

The Dynabook. Source: A Personal Computer for Children of All Ages, Alan Kay, XEROX PARC 1968.

And now Kay's dream about dynabook perhaps has come true. Many features of the Dynabook concept have been adopted in the design of the One Laptop Per Child educational platform, with which Kay is actively involved. And similar dream of Dynabook could be like this one:

Amazon Kindle

Reference: ZDnet.com and wikipedia.org