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2. Epson HX-20 - Wikipedia

   en.wikipedia.org/wiki/Epson_HX-20

   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, [4] [5] occupying roughly the footprint of an A4 notebook while being lightweight enough to hold comfortably with one hand at 1.6 kilograms (3.5 lb) and small enough to fit inside an average briefcase.

3. History of laptops - Wikipedia

   en.wikipedia.org/wiki/History_of_laptops

   Owing much to the design of the previous Epson HX-20, and although at first a slow seller in Japan, it was quickly licensed by Tandy Corporation, Olivetti, and NEC, who recognised its potential and marketed it respectively as the TRS-80 Model 100 line (or Tandy 100), Olivetti M-10, and NEC PC-8201. [9] The machines ran on standard AA batteries.

4. Epson - Wikipedia

   en.wikipedia.org/wiki/Epson

   Epson HX-20 In June 1978, the TX-80 (TP-80) , an eighty-column dot matrix printer , was released to the market and was mainly used as a system printer for the Commodore PET computer. After two years of further development, an improved model, the MX-80 (MP-80), was launched in October 1980. [ 8 ]

5. List of laptop brands and manufacturers - Wikipedia

   en.wikipedia.org/wiki/List_of_laptop_brands_and...

   Epson: Japan ActionNote, Endeavor, HX-20, PX-4, PX-8 Geneva: Epson exited the personal computer business in the United States in 1996 and in Japan in the 2010s.

6. Notebook (laptop) - Wikipedia

   en.wikipedia.org/wiki/Notebook_(laptop)

   The Epson HX-20 from 1982 was the first portable computer to be called a "notebook". The terms laptop and notebook both trace their origins to the early 1980s, coined to describe portable computers in a size class smaller than the contemporary mainstream units (so-called "luggables") but larger than pocket computers.

7. Epson PX-4 - Wikipedia

   en.wikipedia.org/wiki/Epson_PX-4

   Epson HX-20 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, [ 1 ] making it almost compatible with the Epson PX-8 Geneva .