Epson HX-20
From Wikipedia, the free encyclopedia
The Epson HX-20 (also known as the HC-20) was the first "true" laptop computer.[4][1][2] It was invented in July 1980 by Yukio Yokozawa, who worked for Suwa Seikosha, now the Seiko Epson subsidiary of the Japanese Seiko Group, receiving a patent for the invention.[5] It was announced in 1981 as the HC-20 in Japan,[1] and was introduced by Epson in North America as the HX-20 at the 1981 COMDEX computer show in Las Vegas, where it drew significant attention for its portability.[6] It had a mass-market release in July 1982, as the HC-20 in Japan[1] and as the Epson HX-20 in North America.[2] The size of an A4 notebook and weighing 1.6 kg, it was hailed by BusinessWeek magazine as the "fourth revolution in personal computing".
This article needs additional citations for verification. (April 2023) |
Quick Facts Also known as, Manufacturer ...
Also known as | HC-20 |
---|---|
Manufacturer | Seiko Epson |
Release date | July 1982; 41 years ago (July 1982)[1][2][3] |
Introductory price | US$795 (today $2430) |
CPU | two Hitachi 6301 CPUs at 614 kHz |
Memory | 16 kB RAM expandable to 32 kB 32 kB ROM expandable to 64 kB |
Display | 4 lines x 20 characters LCD |
Graphics | 120 × 32-pixel |
Input | full-transit keyboard |
Power | rechargeable nickel-cadmium batteries |
Dimensions | A4 Sized |
Mass | approximately 1.6 kg |
Close