when was the first laptop invented and by whom
July 1980 Yukio Yokozawa
title: History of laptops text: History of laptops The history of laptops describes the efforts in the 1970s and 1980s to build small, portable personal computers that combine the components, inputs, outputs and capabilities of a desktop computer in a small chassis. Before laptop/notebook computers were technically feasible, similar ideas had been proposed, most notably Alan Kay's Dynabook concept, developed at Xerox PARC in the early 1970s. One of the first reasonably portable computers was the Xerox NoteTaker, again developed at Xerox PARC, in 1976. However, only 10 prototypes were built. The portable micro computer the “Portal" of the French company R2E Micral CCMC officially title: Laptop text: the personal computer (PC) became feasible in 1971, the idea of a portable personal computer soon followed. A "personal, portable information manipulator" was imagined by Alan Kay at Xerox PARC in 1968, and described in his 1972 paper as the "Dynabook". The IBM Special Computer APL Machine Portable (SCAMP) was demonstrated in 1973. This prototype was based on the IBM PALM processor. The IBM 5100, the first commercially available portable computer, appeared in September 1975, and was based on the SCAMP prototype. As 8-bit CPU machines became widely accepted, the number of portables increased rapidly. The first laptop-sized notebook computer title: Laptop text: was the Epson HX-20, invented (patented) by Suwa Seikosha's Yukio Yokozawa in July 1980, introduced at the COMDEX computer show in Las Vegas by Japanese company Seiko Epson in 1981, and widely released in 1982. It had an LCD screen, a rechargeable battery, and a calculator-size printer, in a chassis, the size of an A4 notebook. It was described as a "laptop" and "notebook" computer in its patent. The portable micro computer Portal of the French company R2E Micral CCMC officially appeared in September 1980 at the Sicob show in Paris. It was a portable microcomputer designed and marketed by title: History of laptops text: design, in which the flat display folded shut against the keyboard. The computer could be run from batteries, and was equipped with a 320×200-pixel electroluminescent display and 384 kilobyte bubble memory. It was not IBM-compatible, and its high price (US$8,000–10,000) limited it to specialized applications. However, it was used heavily by the U.S. military, and by NASA on the Space Shuttle during the 1980s. The GRiD's manufacturer subsequently earned significant returns on its patent rights as its innovations became commonplace. GRiD Systems Corp. was later bought by the Tandy (now RadioShack) Corporation. Another contender for the first true laptop was title: History of laptops text: devices, often built on the fledgling low-power Intel Atom processor architecture. In 2009, Qualcomm introduced a new term "smartbook", which stands for a hybrid device between smartphone and laptop. History of laptops The history of laptops describes the efforts in the 1970s and 1980s to build small, portable personal computers that combine the components, inputs, outputs and capabilities of a desktop computer in a small chassis. Before laptop/notebook computers were technically feasible, similar ideas had been proposed, most notably Alan Kay's Dynabook concept, developed at Xerox PARC in the early 1970s. One of the first reasonably portable computers was the