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Epson HX 20

Producer: Epson  -  Category: Personal Computer

Portable computer, 1982, Epson. The HX-20 is considered the first laptop computer: A4 size, with LCD display, built-in printer and micro-cassette drive.

Year1982
ManufacturerSeiko Epson
ModelHX-20 (HC-20)
Processors2 x Hitachi 6301 at 614 kHz (equivalent to Motorola 6801)
RAM16 KB, expandable to 32 KB
ROM32 KB, expandable to 64 KB
DisplayLCD, 4 lines x 20 characters, 120 x 32 pixels
Interfaces2 x RS232 (8-pin and 5-pin DIN)
Built-in peripheralsmicro-cassette drive, printer
Expansion portsRAM, ROM, memory mapped I/O devices
DimensionsA4
Weight1.6 kg
Power8 W
Operating systemmonitor and BASIC interpreter
Base price (1983)$795

Documentation