William Grant "Bill" Moggridge, RDI (25 June 1943 – 8 September 2012) was a British designer, author and educator who cofounded the design company IDEO and was director of the Cooper-Hewitt, National Design Museum in New York. 

He was a pioneer in adopting a human-centred approach in design, and championed interaction design as a mainstream design discipline (he is given credit for coining the term). Among his achievements, he designed the first laptop computer, the GRiD Compass, was honoured for Lifetime Achievement from the National Design Awards, and given the Prince Philip Designers Prize. He was quoted as saying, "If there is a simple, easy principle that binds everything I have done together, it is my interest in people and their relationship to things.”

In 1979, Moggridge began designing the Grid Compass for a startup firm called Grid Systems. It is widely considered to be the first real laptop.

Early “portable” computers were 26-pound sewing machine-sized beasts. The Grid Compass, however, was truly a breakthrough in mobile computing, with a 12-pound weight and unique fold-over display that made the device more compact. NASA and the military were the primary users of these $8,150 laptops. 

Laptops have been shrinking incredibly since the Grid Compass was released in 1982 but, in the three decades since then, the basic form hasn’t changed very much from Moggridge’s original conception. That’s the sign of a true design genius. 

According to en.wikipedia & pcworld.com