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Epson HX-20

The Epson HX-20 (also known as the HC-20) is regarded by some as the first laptop computer, announced in November 1981, but conceived nearly a year before by Seiko, who were handed the patent for it.

Lack of software and distribution meant it was not sold widely until 1983.

Hailed by BusinessWeek magazine as the "fourth revolution in personal computing", it had a rudamentary screen of just 120x32 lines, and could be connected to a printer via an expansion port.

It has two Hitachi processors, and 16KB of expandable RAM, and runs on Epson basic interpreter.

Today the machine can still run, although the original Ni Cad batteries need replacing.

Manufacturer: Epson
Date: November 1981

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Magazines RELATED to Epson HX-20 in our Library

Item Manufacturer Date
Personal Computer World - December 1982 Dec 1982

Other Systems Related To Epson HX-20:

Item Manufacturer Date
Epson HX-20 with Hard Case Epson November 1981
Epson Executive HX-20 Epson 1982
Epson QX-10 Epson 1983
Epson PX-8 Epson 1984
Telsoft Epson PX-8 Computer + Epson P80-X Printer in Samsonite Case Telsoft Epson 1984
Epson PX-4 Epson 1985
Epson HC-20 (HX-21-UA) Epson 19th May 1986
Epson PC-Portable Q150A Epson 1989
Epson Equity LT with soft case Epson 1989
Epson Equity LT Epson 1989

This exhibit has a reference ID of CH501. Please quote this reference ID in any communication with the Centre for Computing History.


Epson HX-20

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