The HX-20 (also known as the HC-20) is an early laptop released by Seiko Epson in July 1982. It was the first notebook-sized portable computer, occupying...

Seiki officially named itself the Epson Corporation and launched the world's first handheld computer, the HX-20 (HC-20), and in May 1983, the world's first...

computing was announced in 1981 and sold from July 1982, the 8/16-bit Epson HX-20. It featured a full-transit 68-key keyboard, rechargeable nickel-cadmium...

The Epson PX-4 (HC-40 or HX-40) is a portable CP/M based computer introduced in 1985. The screen was 40×8 characters physical, but 80×25 or 40×50 virtual...

disappointment of the Epson HX-20, the Geneva PX-8 represents a giant improvement. It is, at this time, the most powerful 8-bit portable available". EPSON PX-8 User's...

increased rapidly. The first "laptop-sized notebook computer" was the Epson HX-20, invented (patented) by Suwa Seikosha's Yukio Yokozawa in July 1980,...

slab-like portable computers that had a letter-paper footprint, such as Epson's HX-20 and Tandy's TRS-80 Model 100 of the early 1980s. The popularity of this...

themselves are expensive. Notebook computers such as the TRS-80 Model 100 and Epson HX-20 had roughly the plan dimensions of a sheet of typing paper (ANSI A or...

oldcomputers.net "Radio Shack TRS-80 Pocket Computer". 090508 oldcomputers.net "Epson HX-20 computer". 090508 oldcomputers.net "OLD-COMPUTERS.COM : The Museum"....

"luggable" computer when compared to those later "laptop" designs such as the Epson HX-20. The Osborne 1 was described as "a cross between a World War II field...